| Abelia chinensis R. Br. | 4 | Abelia ×grandiflora (Rovelli ex André) Rehder | 12 | Abeliophyllum distichum Nakai | 2 | Abeliophyllum distichum Nakai f. lilacinum Nakai | 1 | Abelmoschus manihot (L.) Medik. | 1 | Abelmoschus moschatus Medik. | 1 | Abies alba Mill. | 2 | Abies balsamea (L.) Mill. | 2 | Abies cilicica (Antoine & Kotschy) Carrière | 1 | Abies concolor (Gordon & Glend.) Lindl. ex Hildebr. | 4 | Abies fargesii Franch. | 3 | Abies fargesii Franch. var. faxoniana (Rehder & E. H. Wilson) Tang S. Liu | 1 | Abies firma Siebold & Zucc. | 5 | Abies forrestii Coltm.-Rog. var. georgei (Orr) Farjon | 1 | Abies fraseri (Pursh) Poir. | 3 | Abies grandis (Douglas ex D. Don) Lindl. | 1 | Abies holophylla Maxim. | 7 | Abies homolepis Siebold & Zucc. | 4 | Abies koreana E. H. Wilson | 13 | Abies lasiocarpa (Hook.) Nutt. | 3 | Abies mariesii Mast. | 1 | Abies nephrolepis (Trautv. ex Maxim.) Maxim. | 6 | Abies nordmanniana (Steven) Spach | 9 | Abies nordmanniana (Steven) Spach subsp. equi-trojani (Asch. & Sint. ex Boiss.) Coode & Cullen | 3 | Abies numidica de Lannoy ex Carrière | 2 | Abies pinsapo Boiss. | 2 | Abies procera Rehder | 1 | Abies recurvata Mast. var. ernestii (Rehder) C. T. Kuan | 2 | Abies sachalinensis (F. Schmidt) Mast. | 4 | Abies spp. | 2 | Abies squamata Mast. | 1 | Abies ×shastensis (Lemmon) Lemmon | 1 | Abies ×vilmorinii Mast. | 1 | Abutilon theophrasti Medik. | 1 | Abutilon ×hybridum hort. ex Voss | 1 | Acalypha wilkesiana Müll. Arg. | 3 | Acanthus mollis L. | 1 | Acanthus spp. | 1 | Acer argutum Maxim. | 1 | Acer barbinerve Maxim. | 8 | Acer buergerianum Miq. | 21 | Acer buergerianum Miq. subsp. formosanum (Hayata ex Koidz.) A. E. Murray & Lauener | 2 | Acer caesium Wall. ex Brandis | 1 | Acer caesium Wall. ex Brandis subsp. giraldii (Pax) A. E. Murray | 1 | Acer campbellii Hook. f. & Thomson ex Hiern subsp. flabellatum (Rehder) A. E. Murray | 2 | Acer campbellii Hook. f. & Thomson ex Hiern subsp. wilsonii (Rehder) P. C. DeJong | 3 | Acer campestre L. | 17 | Acer capillipes Maxim. | 1 | Acer cappadocicum Gled. | 6 | Acer cappadocicum Gled. subsp. cappadocicum | 1 | Acer cappadocicum Gled. subsp. divergens (K. Koch ex Pax) A. E. Murray | 1 | Acer cappadocicum Gled. subsp. sinicum (Rehder) Hand.-Mazz. | 1 | Acer carpinifolium Siebold & Zucc. | 4 | Acer caudatifolium Hayata | 3 | Acer caudatum Wall. subsp. multiserratum (Maxim.) A. E. Murray | 2 | Acer ceriferum Rehder | 1 | Acer circinatum Pursh | 3 | Acer cissifolium (Siebold & Zucc.) K. Koch | 3 | Acer cordatum Paxton | 2 | Acer crataegifolium Siebold & Zucc. | 2 | Acer davidii Franch. | 16 | Acer davidii Franch. subsp. grosseri (Pax) P. C. DeJong | 6 | Acer diabolicum Blume ex K. Koch | 1 | Acer elegantulum W. P. Fang & P. L. Chiu | 1 | Acer erianthum Schwer. | 3 | Acer fabri Hance | 1 | Acer glabrum Torr. | 5 | Acer glabrum Torr. var. torreyi (Greene) Smiley | 1 | Acer grandidentatum Nutt. | 1 | Acer grandidentatum Nutt. var. sinuosum (Rehder) Little | 2 | Acer griseum (Franch.) Pax | 10 | Acer heldreichii Orph. ex Boiss. | 1 | Acer heldreichii Orph. ex Boiss. subsp. trautvetteri (Medw.) A. E. Murray | 2 | Acer henryi Pax | 11 | Acer hybr. | 8 | Acer hyrcanum Fisch. & C. A. Mey. | 2 | Acer japonicum Thunb. | 8 | Acer longipes Franch. ex Rehder | 3 | Acer macrophyllum Pursh | 8 | Acer mandshuricum Maxim. | 4 | Acer maximowiczianum Miq. | 1 | Acer micranthum Siebold & Zucc. | 1 | Acer miyabei Maxim. | 2 | Acer miyabei Maxim. subsp. miaotaiense (P. C. Tsoong) A. E. Murray | 5 | Acer monspessulanum L. | 2 | Acer monspessulanum L. subsp. ibericum (M. Bieb. ex Willd.) Yalt. | 4 | Acer negundo L. | 12 | Acer negundo L. subsp. californicum (Torr. & A. Gray) Wesm. | 1 | Acer negundo L. subsp. negundo | 1 | Acer nipponicum H. Hara | 1 | Acer oblongum Wall. ex DC. | 2 | Acer oliverianum Pax | 7 | Acer opalus Mill. subsp. obtusatum (Waldst. & Kit. ex Willd.) Gams | 1 | Acer palmatum Thunb. | 136 | Acer palmatum Thunb. subsp. amoenum (Carrière) H. Hara | 2 | Acer palmatum Thunb. subsp. matsumurae Koidz. | 2 | Acer pauciflorum W. P. Fang | 1 | Acer pectinatum Wall. ex G. Nicholson subsp. forrestii (Diels) A. E. Murray | 1 | Acer pectinatum Wall. ex G. Nicholson subsp. maximowiczii (Pax) A. E. Murray | 2 | Acer pensylvanicum L. | 14 | Acer pentaphyllum Diels | 1 | Acer pictum Thunb. ex Murray subsp. mayrii (Schwer.) H. Ohashi | 2 | Acer pictum Thunb. ex Murray subsp. mono (Maxim. & Rupr.) H. Ohashi | 23 | Acer platanoides L. | 16 | Acer pseudoplatanus L. | 6 | Acer pseudosieboldianum (Pax) Kom. | 5 | Acer pseudosieboldianum (Pax) Kom. subsp. takesimense (Nakai) P. C. DeJong | 1 | Acer pubinerve Rehder | 3 | Acer pubipalmatum W. P. Fang | 1 | Acer pycnanthum K. Koch | 5 | Acer rubrum L. | 45 | Acer rubrum L. var. drummondii (Hook. & Arn. ex Nutt.) Sarg. | 1 | Acer rubrum L. var. trilobum K. Koch | 1 | Acer rufinerve Siebold & Zucc. | 2 | Acer saccharinum L. | 4 | Acer saccharum Marshall | 12 | Acer saccharum Marshall subsp. floridanum (Chapm.) Desmarais | 12 | Acer saccharum Marshall subsp. leucoderme (Small) Desmarais | 6 | Acer saccharum Marshall subsp. nigrum (F. Michx.) Desmarais | 2 | Acer saccharum Marshall subsp. saccharum | 13 | Acer saccharum Marshall subsp. skutchii (Rehder) A. E. Murray | 2 | Acer shirasawanum Koidz. | 6 | Acer sieboldianum Miq. | 7 | Acer sosnowskyi Doluch. | 2 | Acer spicatum Lam. | 10 | Acer spp. | 11 | Acer stachyophyllum Hiern | 5 | Acer stachyophyllum Hiern subsp. betulifolium (Maxim.) P. C. DeJong | 3 | Acer stachyophyllum Hiern subsp. stachyophyllum | 1 | Acer sterculiaceum Wall. subsp. franchetii (Pax) A. E. Murray | 3 | Acer tataricum L. | 8 | Acer tataricum L. subsp. aidzuense (Franch.) P. C. DeJong | 1 | Acer tataricum L. subsp. ginnala (Maxim. & Rupr.) Wesm. | 11 | Acer tataricum L. subsp. semenovii (Regel & Herder) A. E. Murray | 1 | Acer tataricum L. subsp. tataricum | 2 | Acer tegmentosum Maxim. & Rupr. | 6 | Acer triflorum Kom. | 6 | Acer truncatum Bunge | 7 | Acer tschonoskii Maxim. | 2 | Acer tschonoskii Maxim. subsp. koreanum A. E. Murray | 2 | Acer tsinglingense W. P. Fang & Y. T. Hsieh | 3 | Acer ukurunduense Trautv. & C. A. Mey. | 6 | Acer velutinum Boiss. | 5 | Acer velutinum Boiss. var. vanvolxemii (Mast.) Rehder | 2 | Acer ×freemanii A. E. Murray | 7 | Acer ×zoeschense Pax | 4 | Achillea alpina L. subsp. camtschatica (Rupr. ex Heimerl) Kitam. | 1 | Achillea asiatica Serg. | 1 | Achillea millefolium L. | 4 | Achillea ptarmica L. | 1 | Achillea spp. | 4 | Acmella spp. | 1 | Aconitum carmichaelii Debeaux | 1 | Aconitum japonicum Thunb. | 2 | Aconitum kusnezoffii Rchb. | 1 | Aconitum triphyllum Nakai | 1 | Acorus americanus (Raf.) Raf. | 1 | Acorus calamus L. | 1 | Acorus gramineus Sol. ex Aiton | 11 | Actaea asiatica H. Hara | 1 | Actaea cordifolia DC. | 1 | Actaea heracleifolia (Kom.) J. Compton | 1 | Actaea japonica Thunb. | 3 | Actaea pachypoda Elliott | 3 | Actaea podocarpa DC. | 1 | Actaea racemosa L. | 5 | Actaea rubra (Aiton) Willd. | 1 | Actaea simplex (DC.) Wormsk. ex Prantl | 1 | Actaea spp. | 1 | Actinidia arguta (Siebold & Zucc.) Planch. ex Miq. | 4 | Actinidia callosa Lindl. | 1 | Actinidia callosa Lindl. var. henryi Maxim. | 1 | Actinidia chinensis Planch. | 3 | Actinidia deliciosa (A. Chev.) C. F. Liang & A. R. Ferguson | 2 | Actinidia kolomikta (Maxim. & Rupr.) Maxim. | 3 | Actinidia polygama (Siebold & Zucc.) Planch. ex Maxim. | 1 | Actinidia tetramera Maxim. | 1 | Adenophora spp. | 1 | Adenostoma fasciculatum Hook. & Arn. | 21 | Adenostoma fasciculatum Hook. & Arn. var. fasciculatum | 1 | Adiantum aleuticum (Rupr.) Parris | 2 | Adiantum capillus-veneris L. | 1 | Adiantum jordanii Müll. Hal. | 1 | Adiantum pedatum L. | 4 | Adiantum venustum D. Don | 1 | Adina rubella Hance | 3 | Adinandra millettii (Hook. & Arn.) Benth. & Hook. f. ex Hance | 2 | Adonis amurensis Regel & Radde | 2 | Adonis spp. | 1 | Aesculus assamica Griff. | 1 | Aesculus chinensis Bunge | 2 | Aesculus chinensis Bunge var. wilsonii (Rehder) Turland & N. H. Xia | 1 | Aesculus flava Sol. | 15 | Aesculus glabra Willd. | 7 | Aesculus glabra Willd. var. arguta (Buckley) B. L. Rob. | 2 | Aesculus hippocastanum L. | 3 | Aesculus indica (Wall. ex Cambess.) Hook. | 1 | Aesculus parviflora Walter | 9 | Aesculus pavia L. | 11 | Aesculus pavia L. var. flavescens (Sarg.) Correll | 1 | Aesculus sylvatica W. Bartram | 2 | Aesculus turbinata Blume | 2 | Aesculus ×arnoldiana Sarg. | 2 | Aesculus ×carnea Hayne | 3 | Aesculus ×hybrida DC. | 1 | Agapanthus hybr. | 4 | Agarista populifolia (Lam.) Judd | 5 | Agastache aurantiaca (A. Gray) Lint & Epling | 1 | Agastache foeniculum (Pursh) Kuntze | 2 | Agastache rugosa (Fisch. & C. A. Mey.) Kuntze | 3 | Agastache spp. | 5 | Agave albopilosa I. Cabral et al. | 1 | Agave americana L. | 2 | Agave attenuata Salm-Dyck | 1 | Agave bracteosa S. Watson ex Engelm. | 1 | Agave desmettiana Jacobi | 1 | Agave gentryi B. Ullrich | 1 | Agave gracilipes Trel. | 1 | Agave hybr. | 44 | Agave lechuguilla Torr. | 1 | Agave ovatifolia G. D. Starr & Villarreal | 1 | Agave parryi Engelm. subsp. neomexicana (Wooton & Standl.) B. Ullrich | 1 | Agave parryi Engelm. var. truncata Gentry | 1 | Agave spp. | 1 | Agave tenuifolia Zamudio & E. Sánchez | 1 | Agave tequilana F. A. C. Weber | 1 | Agave toumeyana Trel. ex Standl. | 1 | Agave undulata Klotzsch | 2 | Agave victoriae-reginae T. Moore | 1 | Agave vilmoriniana A. Berger | 2 | Agave virginica L. | 2 | Ageratina altissima (L.) R. M. King & H. Rob. | 1 | Ageratina havanensis (Kunth) R. M. King & H. Rob. | 1 | Aglaia spp. | 1 | Agrimonia eupatoria L. | 2 | Ailanthus altissima (Mill.) Swingle | 3 | Ajuga spp. | 1 | Akebia quinata (Thunb. ex Houtt.) Decne. | 2 | Akebia spp. | 1 | Alangium platanifolium (Siebold & Zucc.) Harms | 1 | Albizia julibrissin Durazz. | 3 | Albizia macrophylla (Bunge) P. C. Huang | 4 | Albizia spp. | 3 | Albuca bracteata (Thunb.) J. C. Manning & Goldblatt | 1 | Aletris farinosa L. | 1 | Aleurites moluccanus (L.) Willd. | 1 | Alisma plantago-aquatica L. | 1 | Alisma subcordatum Raf. | 1 | Alkanna tinctoria Tausch | 1 | Alkekengi officinarum Moench var. officinarum | 3 | Allium ampeloprasum L. var. ampeloprasum | 1 | Allium caeruleum Pall. | 3 | Allium cepa L. | 1 | Allium cernuum Roth | 3 | Allium cristophii Trautv. | 3 | Allium hollandicum R. M. Fritsch | 1 | Allium hybr. | 8 | Allium macrostemon Bunge | 1 | Allium narcissiflorum Vill. | 1 | Allium nigrum L. | 1 | Allium sativum L. | 1 | Allium schoenoprasum L. | 1 | Allium schubertii Zucc. | 2 | Allium senescens L. | 4 | Allium senescens L. subsp. montanum (Pohl) Janch. ex Soó | 1 | Allium sphaerocephalon L. | 3 | Allium stipitatum Regel | 2 | Allium thunbergii G. Don | 4 | Allium tricoccum Aiton | 2 | Allium tuberosum Rottler ex Spreng. | 2 | Alloberberis fremontii (Torr.) C. C. Yu & K. F. Chung | 5 | Alloberberis haematocarpa (Wooton) C. C. Yu & K. F. Chung | 2 | Alloberberis swaseyi (Buckley ex M. J. Young) C. C. Yu & K. F. Chung | 1 | Alloberberis trifoliolata (Moric.) C. C. Yu & K. F. Chung | 1 | Alniphyllum fortunei (Hemsl.) Makino | 2 | Alnus cordata (Loisel.) Duby | 5 | Alnus glutinosa (L.) Gaertn. | 5 | Alnus hirsuta (Spach) Turcz. ex Rupr. | 5 | Alnus japonica (Thunb.) Steud. | 2 | Alnus maritima (Marshall) Muhl. ex Nutt. | 1 | Alnus maritima (Marshall) Muhl. ex Nutt. subsp. oklahomensis J. A. Schrad. & W. R. Graves | 2 | Alnus rhombifolia Nutt. | 1 | Alnus serrulata (Aiton) Willd. | 6 | Alnus spp. | 2 | Alnus viridis (Chaix) DC. | 1 | Alocasia macrorrhizos (L.) G. Don | 1 | Alocasia spp. | 1 | Aloe arborescens Mill. | 2 | Aloe brevifolia Mill. | 1 | Aloe ferox Mill. | 1 | Aloe humilis (L.) Mill. | 2 | Aloe maculata All. | 1 | Aloe spp. | 11 | Aloe striata Haw. | 1 | Aloe vera (L.) Burm. f. | 2 | Aloe wickensii Pole-Evans | 1 | Aloysia citrodora Paláu | 1 | Aloysia gratissima (Gillies & Hook.) Tronc. | 1 | Aloysia virgata (Ruiz & Pav.) Pers. | 2 | Aloysia wrightii A. Heller | 1 | Alpinia galanga (L.) Willd. | 2 | Alpinia japonica (Thunb.) Miq. | 1 | Alpinia spp. | 3 | Alpinia zerumbet (Pers.) B. L. Burtt & R. M. Sm. | 1 | Althaea officinalis L. | 1 | Amaranthus cruentus L. | 1 | Amaranthus tricolor L. | 1 | Amaryllis belladonna L. | 1 | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. | 36 | Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. var. alnifolia | 3 | Amelanchier arborea (F. Michx.) Fernald | 13 | Amelanchier asiatica (Siebold & Zucc.) Endl. | 3 | Amelanchier canadensis (L.) Medik. | 6 | Amelanchier cusickii Fernald | 3 | Amelanchier intermedia Spach | 1 | Amelanchier laevis Wiegand | 4 | Amelanchier lamarckii F. G. Schroed. | 5 | Amelanchier nantucketensis E. P. Bicknell | 2 | Amelanchier ovalis Medik. | 7 | Amelanchier sanguinea (Pursh) DC. | 2 | Amelanchier sinica (C. K. Schneid.) Chun | 1 | Amelanchier spicata (Lam.) K. Koch | 9 | Amelanchier spp. | 16 | Amelanchier utahensis Koehne | 16 | Amelanchier ×wiegandii E. L. Nielsen | 1 | Amianthium muscitoxicum (Walter) A. Gray | 1 | Amischotolype spp. | 1 | Amomum spp. | 4 | Amorpha canescens Pursh | 2 | Amorpha fruticosa L. | 7 | Amorpha glabra Desf. ex Pers. | 2 | Amorpha herbacea Walter | 1 | Amorpha laevigata Nutt. | 1 | Amorpha ouachitensis Wilbur | 3 | Amorpha paniculata Torr. & A. Gray | 3 | Amorphophallus kiusianus (Makino) Makino | 2 | Amorphophallus konjac K. Koch | 4 | Amphicarpaea bracteata (L.) Fernald | 1 | Amsonia ciliata Walter | 1 | Amsonia elliptica (Thunb.) Roem. & Schult. | 2 | Amsonia hubrichtii Woodson | 4 | Amsonia hybr. | 1 | Amsonia spp. | 4 | Amsonia tabernaemontana Walter | 9 | Ananas comosus (L.) Merr. var. bracteatus (Lindl.) Coppens & F. Leal | 1 | Ananas comosus (L.) Merr. var. erectifolius (L. B. Sm.) Coppens & F. Leal | 1 | Anatherum glomeratum (Walter) Voronts. & E. A. Kellogg | 3 | Anatherum ternarium (Michx.) Voronts. & E. A. Kellogg | 4 | Anchistea virginica (L.) C. Presl | 1 | Anchusa spp. | 1 | Andromeda polifolia L. | 1 | Andropogon gerardi Vitman | 2 | Andropogon spp. | 1 | Anemarrhena asphodeloides Bunge | 2 | Anemone acutiloba (DC.) G. Lawson | 4 | Anemone americana (DC.) H. Hara | 1 | Anemone blanda Schott & Kotschy | 1 | Anemone canadensis L. | 1 | Anemone cernua Thunb. | 1 | Anemone hepatica L. | 3 | Anemone hupehensis (Lemoine) Lemoine var. japonica (Thunb.) Bowles & Stearn | 4 | Anemone keiskeana T. Itô ex Maxim. | 1 | Anemone multifida Poir. | 1 | Anemone nemorosa L. | 1 | Anemone nikoensis Maxim. | 1 | Anemone quinquefolia L. | 2 | Anemone spp. | 2 | Anemone tomentosa (Maxim.) C. Pei | 1 | Anemone virginiana L. | 1 | Anemone ×hybrida Paxton | 9 | Angelica anomala Avé-Lall. | 2 | Angelica czernaevia (Fisch. & C. A. Mey.) Kitag. | 1 | Angelica dahurica (Hoffm.) Benth. & Hook. f. ex Franch. & Sav. | 1 | Angelica decursiva (Miq.) Franch. & Sav. | 2 | Angelica gigas Nakai | 2 | Angelica gmelinii (DC.) Pimenov | 1 | Angelica pubescens Maxim. | 1 | Anisacanthus quadrifidus (Vahl) Nees var. wrightii (Torr.) Henrickson | 1 | Antennaria microphylla Rydb. | 1 | Antennaria plantaginifolia (L.) Hook. | 3 | Anthoxanthum nitens (Weber) Y. Schouten & Veldkamp | 2 | Anthoxanthum odoratum L. | 1 | Antirrhinum majus L. | 1 | Aphananthe aspera (Thunb.) Planch. | 4 | Apios americana Medik. | 1 | Aplectrum hyemale (Muhl. ex Willd.) Torr. | 1 | Aquilegia canadensis L. | 6 | Aquilegia flabellata Siebold & Zucc. var. pumila Kudô | 1 | Aquilegia oxysepala Trautv. & C. A. Mey. | 1 | Aquilegia spp. | 1 | Aquilegia vulgaris L. | 2 | Aquilegia yabeana Kitag. | 1 | Arachniodes aristata (G. Forst.) Tindale | 1 | Arachniodes standishii (T. Moore) Ohwi | 2 | Aralia cachemirica Decne. | 1 | Aralia californica S. Watson | 2 | Aralia continentalis Kitag. | 2 | Aralia cordata Thunb. | 2 | Aralia elata (Miq.) Seem. | 1 | Aralia elata (Miq.) Seem. var. elata | 3 | Aralia nudicaulis L. | 3 | Aralia racemosa L. | 3 | Aralia spinosa L. | 8 | Araucaria angustifolia (Bertol.) Kuntze | 2 | Arbutus menziesii Pursh | 1 | Arbutus xalapensis Kunth | 1 | Arctostaphylos columbiana Piper | 1 | Arctostaphylos manzanita Parry | 1 | Arctostaphylos manzanita Parry subsp. manzanita | 1 | Arctostaphylos patula Greene | 5 | Arctostaphylos pringlei Parry | 1 | Arctostaphylos pungens Kunth | 3 | Arctostaphylos uva-ursi (L.) Spreng. | 4 | Arctostaphylos viscida Parry | 2 | Arctostaphylos viscida Parry subsp. pulchella (Howell) P. V. Wells | 1 | Ardisia japonica (Thunb.) Blume | 3 | Areca catechu L. | 1 | Argemone polyanthemos (Fedde) G. B. Ownbey | 1 | Aria edulis (Willd.) M. Roem. | 7 | Aria umbellata (Desf.) Sennikov & Kurtto | 2 | Arisaema amurense Maxim. | 4 | Arisaema candidissimum W. W. Sm. | 5 | Arisaema consanguineum Schott | 4 | Arisaema dracontium (L.) Schott | 2 | Arisaema du-bois-reymondiae Engl. | 1 | Arisaema erubescens (Wall.) Schott | 1 | Arisaema fargesii Buchet | 1 | Arisaema franchetianum Engl. | 1 | Arisaema heterophyllum Blume | 3 | Arisaema kiushianum Makino | 2 | Arisaema lobatum Engl. | 1 | Arisaema ovale Nakai var. sadoense (Nakai) J. Murata | 2 | Arisaema ringens (Thunb.) Schott | 6 | Arisaema saxatile Buchet | 1 | Arisaema sazensoo Makino | 1 | Arisaema serratum (Thunb.) Schott | 2 | Arisaema serratum (Thunb.) Schott var. mayebarae (Nakai) H. Ohashi & J. Murata | 1 | Arisaema sikokianum Franch. & Sav. | 1 | Arisaema spp. | 6 | Arisaema taiwanense J. Murata | 1 | Arisaema tashiroi Kitam. | 1 | Arisaema ternatipartitum Makino | 2 | Arisaema thunbergii Blume | 2 | Arisaema thunbergii Blume subsp. urashima (H. Hara) H. Ohashi & J. Murata | 1 | Arisaema tosaense Makino | 1 | Arisaema triphyllum (L.) Schott | 4 | Arisaema yamatense (Nakai) Nakai | 1 | Aristaloe aristata (Haw.) Boatwr. & J. C. Manning | 1 | Aristida purpurascens Poir. | 1 | Aristolochia contorta Bunge | 2 | Aristolochia macrophylla Lam. | 4 | Aristolochia manshuriensis Kom. | 1 | Aristolochia serpentaria L. | 1 | Aristolochia tomentosa Sims | 3 | Armoracia rusticana G. Gaertn. et al. | 1 | Aronia arbutifolia (L.) Pers. | 13 | Aronia melanocarpa (Michx.) Elliott | 3 | Aronia ×prunifolia (Marshall) Rehder | 3 | Artemisia abrotanum L. | 3 | Artemisia absinthium L. | 1 | Artemisia annua L. | 1 | Artemisia ludoviciana Nutt. | 2 | Artemisia mauiensis (A. Gray) Skottsb. | 1 | Artemisia pontica L. | 1 | Artemisia vulgaris L. | 1 | Arum italicum Mill. | 3 | Aruncus dioicus (Walter) Fernald | 9 | Aruncus spp. | 2 | Arundina graminifolia (D. Don) Hochr. | 1 | Arundinaria gigantea (Walter) Muhl. | 2 | Arundinaria tecta (Walter) Muhl. | 1 | Asarum asperum F. Maek. | 1 | Asarum canadense L. | 4 | Asarum caudigerum Hance | 1 | Asarum chinense Franch. | 1 | Asarum costatum (F. Maek.) T. Sugaw. | 1 | Asarum delavayi Franch. | 2 | Asarum europaeum L. | 1 | Asarum forbesii Maxim. | 1 | Asarum hexalobum F. Maek. var. perfectum F. Maek. | 1 | Asarum kumageanum Masam. | 1 | Asarum maculatum Nakai | 1 | Asarum maximum Hemsl. | 1 | Asarum megacalyx (F. Maek.) T. Sugaw. | 1 | Asarum muramatsui Makino | 1 | Asarum sieboldii Miq. | 2 | Asarum splendens (F. Maek.) C. Y. Cheng & C. S. Yang | 6 | Asarum spp. | 3 | Asarum yakusimense Masam. | 1 | Asclepias curassavica L. | 1 | Asclepias exaltata L. | 1 | Asclepias incarnata L. | 3 | Asclepias purpurascens L. | 1 | Asclepias syriaca L. | 2 | Asclepias tuberosa L. | 9 | Asclepias verticillata L. | 2 | Asimina parviflora (Michx.) Dunal | 1 | Asimina triloba (L.) Dunal | 6 | Asparagus officinalis L. | 1 | Asparagus racemosus Willd. | 1 | Asparagus schoberioides Kunth | 5 | Asparagus spp. | 1 | Asperula tinctoria L. | 1 | Asphodelus fistulosus L. | 1 | Aspidistra basalis Tillich | 1 | Aspidistra elatior Blume | 6 | Aspidistra linearifolia Y. Wan & C. C. Huang | 1 | Aspidistra oblanceifolia F. T. Wang & K. Y. Lang | 1 | Aspidistra omeiensis Z. Y. Zhu & J. L. Zhang | 1 | Asplenium platyneuron (L.) Britton et al. | 2 | Asplenium rhizophyllum L. | 2 | Asplenium scolopendrium L. | 1 | Asplenium trichomanes L. | 1 | Aster iinumae Kitam. ex H. Hara | 1 | Aster incisus Fisch. | 1 | Aster microcephalus (Miq.) Franch. & Sav. var. ovatus (Franch. & Sav.) Soejima & Mot. Ito | 1 | Aster savatieri Makino | 1 | Aster spp. | 2 | Aster tataricus L. f. | 2 | Aster ×frikartii Silva Tar. & C. K. Schneid. | 1 | Aster yomena (Kitam.) Honda | 1 | Astilbe biternata (Vent.) Britton | 1 | Astilbe chinensis (Maxim.) Franch. & Sav. | 6 | Astilbe microphylla Knoll | 1 | Astilbe rivularis Buch.-Ham. ex D. Don | 1 | Astilbe rubra Hook. f. & Thomson | 1 | Astilbe simplicifolia Makino | 1 | Astilbe spp. | 2 | Astilbe thunbergii (Siebold & Zucc.) Miq. var. congesta H. Boissieu | 1 | Astilbe ×arendsii H. Junge | 3 | Astragalus crassicarpus Nutt. var. paysonii (Kelso) Barneby | 1 | Astragalus membranaceus Fisch. ex Bunge | 1 | Athyrium filix-femina (L.) Roth ex Mert. | 11 | Athyrium filix-femina (L.) Roth ex Mert. var. angustum (Willd.) G. Lawson | 2 | Athyrium hybr. | 2 | Athyrium niponicum (Mett.) Hance | 3 | Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. | 10 | Athyrium spp. | 3 | Atraphaxis spinosa L. | 1 | Atropa belladonna L. | 2 | Aucuba chinensis Benth. | 1 | Aucuba japonica Thunb. | 30 | Aucuba japonica Thunb. var. borealis Miyabe & Kudô | 9 | Avena sativa L. | 1 | Baccharis bigelovii A. Gray | 1 | Baccharis brachyphylla A. Gray | 1 | Baccharis glutinosa Pers. | 1 | Baccharis halimifolia L. | 24 | Baccharis neglecta Britton | 1 | Baccharis pilularis DC. | 10 | Baccharis pteronioides DC. | 1 | Baccharis salicifolia (Ruiz & Pav.) Pers. | 3 | Baccharis salicina Torr. & A. Gray | 2 | Baccharis sarothroides A. Gray | 6 | Baccharis sergiloides A. Gray | 5 | Bambusa multiplex (Lour.) Raeusch. ex Schult. & Schult. f. | 1 | Baptisia alba (L.) R. Br. | 1 | Baptisia arachnifera W. H. Duncan | 1 | Baptisia australis (L.) R. Br. | 4 | Baptisia australis (L.) R. Br. var. minor (Lehm.) Fernald | 1 | Baptisia hybr. | 12 | Baptisia lactea (Raf.) Thieret var. lactea | 1 | Baptisia lanceolata (Walter) Elliott | 1 | Baptisia sphaerocarpa Nutt. | 2 | Baptisia tinctoria (L.) R. Br. | 3 | Baptisia ×bicolor Greenm. & Larisey | 1 | Baptisia ×variicolor Kosnik et al. | 1 | Barnardia japonica (Thunb.) Schult. & Schult. f. | 4 | Basella alba L. | 1 | Begonia carolineifolia Regel | 1 | Begonia emeiensis C. M. Hu ex C. Y. Wu & T. C. Ku | 1 | Begonia grandis Dryand. subsp. grandis | 1 | Begonia grandis Dryand. subsp. sinensis (A. DC.) Irmsch. | 2 | Begonia hybr. | 2 | Berberis amurensis Rupr. | 2 | Berberis amurensis Rupr. var. quelpaertensis (Nakai) Nakai | 1 | Berberis buxifolia Lam. | 5 | Berberis darwinii Hook. | 2 | Berberis dictyophylla Franch. | 1 | Berberis fendleri A. Gray | 1 | Berberis henryana C. K. Schneid. | 1 | Berberis heteropoda Schrenk ex Fisch. & C. A. Mey. var. sphaerocarpa (Kar. & Kir.) Ahrendt | 1 | Berberis julianae C. K. Schneid. | 1 | Berberis oblonga (Regel) C. K. Schneid. | 1 | Berberis orthobotrys Bien. ex Aitch. | 1 | Berberis poiretii C. K. Schneid. | 1 | Berberis spp. | 2 | Berberis subsessiliflora Pamp. | 1 | Berberis thunbergii DC. | 1 | Berberis turcomannica Kar. ex Ledeb. | 1 | Berberis vulgaris L. | 3 | Berberis ×frikartii C. K. Schneid. ex H. J. van de Laar | 1 | Berchemia magna (Makino) Koidz. | 1 | Berchemia scandens (Hill) K. Koch | 4 | Bergenia ciliata (Haw.) Sternb. | 1 | Bergenia crassifolia (L.) Fritsch | 2 | Bergenia emeiensis C. Y. Wu | 1 | Berkheya purpurea (DC.) Hook. f. ex Mast. | 1 | Betonica officinalis L. | 2 | Betula alleghaniensis Britton | 3 | Betula davurica Pall. | 1 | Betula fargesii Franch. | 1 | Betula fruticosa Pall. | 1 | Betula grossa Siebold & Zucc. | 3 | Betula kweichowensis Hu | 1 | Betula lenta L. | 3 | Betula lenta L. f. uber (Ashe) McAll. & Ashburner | 3 | Betula maximowicziana Regel | 1 | Betula nigra L. | 9 | Betula papyrifera Marshall | 5 | Betula pendula Roth | 7 | Betula pendula Roth subsp. mandshurica (Regel) Ashburner & McAll. | 2 | Betula populifolia Marshall | 3 | Betula pubescens Ehrh. | 1 | Betula pubescens Ehrh. var. litwinowii (Doluch.) Ashburner & McAll. | 1 | Betula pumila L. | 1 | Betula raddeana Trautv. | 3 | Betula spp. | 3 | Betula utilis D. Don | 2 | Betula utilis D. Don subsp. albosinensis (Burkill) Ashburner & McAll. | 2 | Bidens polylepis S. F. Blake | 1 | Bigelowia nuttallii L. C. Anderson | 1 | Bignonia capreolata L. | 3 | Bismarckia nobilis Hildebrandt & H. Wendl. | 1 | Bistorta affinis (D. Don) Greene | 1 | Bistorta amplexicaulis (D. Don) Greene | 3 | Bixa orellana L. | 1 | Blephilia ciliata (L.) Benth. | 1 | Bletilla ochracea Schltr. | 1 | Bletilla spp. | 1 | Bletilla striata (Thunb.) Rchb. f. | 6 | Blitum virgatum L. | 1 | Boehmeria nivea (L.) Gaudich. | 5 | Boehmeria splitgerbera Koidz. | 2 | Boehmeria tricuspis (Hance) Makino | 1 | Boesenbergia rotunda (L.) Mansf. | 1 | Boltonia asteroides (L.) LʼHér. | 2 | Borago officinalis L. | 1 | Boswellia sacra Flueck. | 1 | Botrychium dissectum Spreng. | 2 | Botrychium virginianum (L.) Sw. | 3 | Bougainvillea glabra Choisy | 2 | Bouteloua curtipendula (Michx.) Torr. | 4 | Bouteloua gracilis (Kunth) Lag. ex Griffiths | 2 | Broussonetia papyrifera (L.) Vent. | 2 | Brugmansia hybr. | 5 | Brugmansia suaveolens (Humb. & Bonpl. ex Willd.) Sweet | 1 | Brugmansia ×candida Pers. | 4 | Brunnera macrophylla (Adams) I. M. Johnst. | 2 | Buckleya distichophylla (Nutt.) Torr. | 4 | Buddleja crispa Benth. | 2 | Buddleja davidii Franch. | 9 | Buddleja japonica Hemsl. | 1 | Buddleja lindleyana Fortune | 1 | Buddleja spp. | 9 | Buddleja utahensis Coville | 3 | Buddleja ×pikei H. R. Fletcher | 1 | Bulbine latifolia (L. f.) Spreng. | 1 | Buxus balearica Lam. | 2 | Buxus harlandii Hance | 9 | Buxus henryi Mayr | 1 | Buxus hybr. | 16 | Buxus koreana (Nakai ex Rehder) T. H. Chung et al. | 12 | Buxus microphylla Siebold & Zucc. | 52 | Buxus microphylla Siebold & Zucc. var. japonica (Müll. Arg. ex Miq.) Rehder & E. H. Wilson | 5 | Buxus rugulosa Hatus. var. prostrata (W. W. Sm.) M. Cheng | 2 | Buxus sempervirens L. | 249 | Buxus sinica (Rehder & E. H. Wilson) M. Cheng | 4 | Buxus spp. | 15 | Buxus wallichiana Baill. | 1 | Calamagrostis arundinacea (L.) Roth | 1 | Calamagrostis arundinacea (L.) Roth var. brachytricha (Steud.) Hack. | 1 | Calamagrostis canadensis (Michx.) P. Beauv. | 3 | Calamagrostis ×acutiflora (Schrad.) Rchb. | 4 | Calanthe aristulifera Rchb. f. | 1 | Calanthe discolor Lindl. | 2 | Calanthe hybr. | 2 | Calanthe striata R. Br. ex Lindl. | 3 | Calendula officinalis L. | 1 | Callerya reticulata (Benth.) Schot | 1 | Callicarpa americana L. | 27 | Callicarpa bodinieri H. Lév. | 1 | Callicarpa bodinieri H. Lév. var. giraldii (Hesse ex Rehder) Rehder | 3 | Callicarpa cathayana Hung T. Chang | 1 | Callicarpa dichotoma (Lour.) K. Koch | 11 | Callicarpa hybr. | 1 | Callicarpa japonica Thunb. | 19 | Callicarpa japonica Thunb. var. japonica | 1 | Callicarpa japonica Thunb. var. luxurians Rehder | 1 | Callicarpa mollis Siebold & Zucc. | 3 | Callicarpa rubella Lindl. | 1 | Callicarpa spp. | 1 | Callicarpa tosaensis Makino | 1 | Callirhoe involucrata (Torr. & A. Gray) A. Gray | 2 | Callisia rosea (Vent.) D. R. Hunt | 1 | Callistephus chinensis (L.) Nees | 1 | Calluna vulgaris (L.) Hull | 2 | Calocedrus decurrens (Torr.) Florin | 10 | Calochortus gunnisonii S. Watson | 1 | Caltha palustris L. | 1 | Calycanthus chinensis (W. C. Cheng & S. Y. Chang) W. C. Cheng & S. Y. Chang ex P. T. Li | 2 | Calycanthus floridus L. | 22 | Calycanthus floridus L. var. glaucus (Willd.) Torr. & A. Gray | 1 | Calycanthus hybr. | 2 | Calycanthus occidentalis Hook. & Arn. | 2 | Calycanthus ×raulstonii (F. T. Lass. & Fantz) F. T. Lass. & Fantz ex Bernd Schulz | 3 | Camassia leichtlinii (Baker) S. Watson | 3 | Camassia leichtlinii (Baker) S. Watson subsp. suksdorfii (Greenm.) Gould | 1 | Camassia quamash (Pursh) Greene | 2 | Camellia brevistyla (Hayata) Cohen-Stuart var. brevistyla | 1 | Camellia chrysanthoides Hung T. Chang | 1 | Camellia grijsii Hance var. grijsii | 1 | Camellia hybr. | 86 | Camellia japonica L. | 92 | Camellia japonica L. var. rusticana (Honda) T. L. Ming | 2 | Camellia lutchuensis T. Itô | 1 | Camellia oleifera C. Abel | 11 | Camellia sasanqua Thunb. | 14 | Camellia sinensis (L.) Kuntze | 6 | Camellia sinensis (L.) Kuntze var. sinensis | 1 | Camellia spp. | 1 | Camellia ×vernalis (Makino) Makino | 17 | Camellia ×williamsii W. W. Sm. | 3 | Campanula americana L. | 1 | Campanula punctata Lam. | 1 | Campanula spp. | 4 | Campanula takesimana Nakai | 1 | Camphora officinarum Boerh. ex Fabr. | 1 | Campsis grandiflora (Thunb.) K. Schum. | 1 | Campsis radicans (L.) Seem. ex Bureau | 6 | Campsis ×tagliabuana (Vis.) Rehder | 2 | Camptotheca acuminata Decne. | 2 | Campylotropis polyantha (Franch.) Schindl. | 1 | Cananga odorata (Lam.) Hook. f. & Thomson var. fruticosa (Craib) J. Sinclair | 1 | Canna hybr. | 5 | Capsicum annuum L. | 56 | Capsicum baccatum L. var. pendulum (Willd.) Eshbaugh | 3 | Capsicum chacoense Hunz. | 1 | Capsicum chinense Jacq. | 17 | Capsicum frutescens L. | 3 | Capsicum spp. | 5 | Caragana jubata (Pall.) Poir. | 1 | Caragana rosea Turcz. ex Kom. | 1 | Caragana sinica (Bucʼhoz) Rehder | 1 | Caragana zahlbruckneri C. K. Schneid. subsp. zahlbruckneri var. pekinensis (Kom.) Yakovlev | 1 | Cardamine concatenata (Michx.) O. Schwarz | 2 | Cardamine diphylla (Michx.) Alph. Wood | 2 | Cardiocrinum giganteum (Wall.) Makino | 1 | Carex appalachica J. M. Webber & P. W. Ball | 2 | Carex buchananii Berggr. | 1 | Carex comosa Boott | 1 | Carex conica Boott | 2 | Carex crinita Lam. | 2 | Carex dolichostachya Hayata | 1 | Carex eburnea Boott | 1 | Carex elata All. | 4 | Carex flacca Schreb. | 3 | Carex folliculata L. | 1 | Carex fraseriana Ker Gawl. | 1 | Carex glaucodea Tuck. ex Olney | 1 | Carex hitchcockiana Dewey | 1 | Carex hystericina Muhl. ex Willd. | 2 | Carex jamesii Schwein. | 1 | Carex laxiculmis Schwein. | 1 | Carex louisianica L. H. Bailey | 1 | Carex macrocephala Willd. ex Spreng. | 1 | Carex morrowii Boott | 4 | Carex morrowii Boott var. morrowii | 1 | Carex muskingumensis Schwein. | 1 | Carex nebrascensis Dewey | 1 | Carex oshimensis Nakai | 5 | Carex pendula Huds. | 1 | Carex pensylvanica Lam. | 5 | Carex phyllocephala T. Koyama | 1 | Carex plantaginea Lam. | 6 | Carex platyphylla J. Carey | 1 | Carex radiata (Wahlenb.) Small | 2 | Carex scaposa C. B. Clarke | 2 | Carex siderosticta Hance | 4 | Carex siderosticta Hance var. pilosa H. Lév. ex T. Koyama | 2 | Carex spp. | 15 | Carex vulpinoidea Michx. | 2 | Carpinus betulus L. | 35 | Carpinus caroliniana Walter | 37 | Carpinus caroliniana Walter subsp. virginiana (Marshall) Furlow | 2 | Carpinus cordata Blume | 20 | Carpinus cordata Blume var. chinensis Franch. | 1 | Carpinus coreana Nakai | 4 | Carpinus fangiana Hu | 1 | Carpinus henryana (H. J. P. Winkl.) H. J. P. Winkl. | 1 | Carpinus japonica Blume | 5 | Carpinus laxiflora (Siebold & Zucc.) Blume | 11 | Carpinus orientalis Mill. | 14 | Carpinus orientalis Mill. subsp. macrocarpa (Willk.) Browicz | 1 | Carpinus polyneura Franch. | 1 | Carpinus pubescens Burkill | 2 | Carpinus spp. | 2 | Carpinus tschonoskii Maxim. | 4 | Carpinus turczaninovii Hance | 7 | Carpinus viminea Wall. ex Lindl. | 3 | Cartrema americana (L.) G. L. Nesom | 6 | Carya aquatica (F. Michx.) Elliott | 6 | Carya cordiformis (Wangenh.) K. Koch | 2 | Carya glabra (Mill.) Sweet | 4 | Carya illinoinensis (Wangenh.) K. Koch | 1 | Carya myristiciformis (F. Michx.) Elliott | 4 | Carya ovalis (Wangenh.) Sarg. | 4 | Carya ovata (Mill.) K. Koch | 8 | Carya pallida (Ashe) Engl. & Graebn. | 1 | Carya spp. | 1 | Carya texana Buckley | 2 | Carya tomentosa (Lam.) Nutt. | 6 | Caryopteris incana (Thunb. ex Houtt.) Miq. | 2 | Caryopteris ×clandonensis A. Simmonds ex C. H. Curtis | 3 | Cassiope mertensiana (Bong.) G. Don | 1 | Castanea dentata (Marshall) Borkh. | 7 | Castanea hybr. | 2 | Castanea mollissima Blume | 3 | Castanea ozarkensis Ashe | 1 | Castanea pumila (L.) Mill. | 8 | Castanea sativa Mill. | 2 | Castanea seguinii Dode | 2 | Castanopsis sclerophylla (Lindl. & Paxton) Schottky | 2 | Casuarina equisetifolia L. | 1 | Catalpa bignonioides Walter | 9 | Catalpa bungei C. A. Mey. | 3 | Catalpa ovata G. Don | 4 | Catalpa speciosa E. Y. Teas | 10 | Catalpa spp. | 2 | Catharanthus roseus (L.) G. Don | 1 | Caulophyllum robustum Maxim. | 4 | Caulophyllum thalictroides (L.) Michx. | 2 | Ceanothus americanus L. | 12 | Ceanothus cordulatus Kellogg | 1 | Ceanothus cuneatus (Hook.) Nutt. | 9 | Ceanothus cuneatus (Hook.) Nutt. var. cuneatus | 2 | Ceanothus cuneatus (Hook.) Nutt. var. rigidus (Nutt.) Hoover | 3 | Ceanothus dentatus Torr. & A. Gray | 4 | Ceanothus fendleri A. Gray | 2 | Ceanothus foliosus Parry var. foliosus | 2 | Ceanothus greggii A. Gray | 2 | Ceanothus greggii A. Gray var. perplexans (Trel.) Jeps. | 2 | Ceanothus greggii A. Gray var. vestitus (Greene) McMinn | 1 | Ceanothus herbaceus Raf. | 2 | Ceanothus incanus Torr. & A. Gray | 3 | Ceanothus integerrimus Hook. & Arn. | 10 | Ceanothus jepsonii Greene var. albiflorus J. T. Howell | 1 | Ceanothus jepsonii Greene var. jepsonii | 1 | Ceanothus lemmonii Parry | 4 | Ceanothus leucodermis Greene | 2 | Ceanothus martini M. E. Jones | 1 | Ceanothus prostratus Benth. | 3 | Ceanothus pumilus Greene | 1 | Ceanothus sanguineus Pursh | 4 | Ceanothus spp. | 2 | Ceanothus thyrsiflorus Eschsch. | 5 | Ceanothus velutinus Douglas | 7 | Ceanothus velutinus Douglas var. laevigatus Torr. & A. Gray | 2 | Cedrus atlantica (Endl.) G. Manetti ex Carrière | 21 | Cedrus deodara (Roxb. ex D. Don) G. Don | 29 | Cedrus libani A. Rich. | 7 | Cedrus libani A. Rich. subsp. brevifolia (Hook. f.) Meikle | 1 | Cedrus libani A. Rich. subsp. stenocoma (O. Schwarz) P. H. Davis | 1 | Celastrus angulatus Maxim. | 1 | Celastrus orbiculatus Thunb. | 1 | Celastrus rosthornianus Loes. | 1 | Celastrus scandens L. | 12 | Celosia argentea L. | 1 | Celtica gigantea (Link) F. M. Vázquez & Barkworth | 1 | Celtis australis L. | 3 | Celtis biondii Pamp. | 2 | Celtis bungeana Blume | 7 | Celtis caucasica Willd. | 17 | Celtis choseniana Nakai | 2 | Celtis glabrata Steven ex Planch. | 3 | Celtis jessoensis Koidz. | 3 | Celtis julianae C. K. Schneid. | 1 | Celtis koraiensis Nakai | 2 | Celtis laevigata Willd. | 8 | Celtis occidentalis L. | 14 | Celtis pallida Torr. | 2 | Celtis pumila Pursh | 16 | Celtis reticulata Torr. | 9 | Celtis sinensis Pers. | 12 | Celtis spp. | 6 | Celtis tetrandra Roxb. | 1 | Celtis tournefortii Lam. | 3 | Cenchrus advena (Wipff & Veldkamp) Morrone | 2 | Cenchrus elegans (Hassk.) Veldkamp | 1 | Cenchrus orientalis (Rich.) Morrone | 1 | Cenchrus purpurascens Thunb. | 6 | Centaurium erythraea Rafn | 1 | Centella asiatica (L.) Urb. | 1 | Centrosema virginianum (L.) Benth. | 1 | Cephalanthus occidentalis L. | 57 | Cephalaria gigantea (Ledeb.) Bobrov | 1 | Cephalotaxus fortunei Hook. | 5 | Cephalotaxus harringtonia (Knight ex J. Forbes) K. Koch | 10 | Cephalotaxus harringtonia (Knight ex J. Forbes) K. Koch var. drupacea (Siebold & Zucc. ex Engl.) Koidz. | 1 | Cephalotaxus harringtonia (Knight ex J. Forbes) K. Koch var. koreana (Nakai) Rehder | 2 | Cephalotaxus harringtonia (Knight ex J. Forbes) K. Koch var. nana (Nakai) Rehder | 1 | Cephalotaxus sinensis (Rehder & E. H. Wilson) H. L. Li | 18 | Cephalotaxus wilsoniana Hayata | 1 | Ceratonia siliqua L. | 1 | Ceratostigma plumbaginoides Bunge | 3 | Ceratostigma willmottianum Stapf | 2 | Cercidiphyllum japonicum Siebold & Zucc. ex J. J. Hoffm. & J. H. Schult. bis | 13 | Cercidiphyllum magnificum (Nakai) Nakai | 4 | Cercis canadensis L. | 105 | Cercis canadensis L. var. canadensis | 13 | Cercis canadensis L. var. mexicana (Rose) M. Hopkins | 5 | Cercis canadensis L. var. texensis (S. Watson) M. Hopkins | 11 | Cercis chinensis Bunge | 27 | Cercis chingii Chun | 6 | Cercis chuniana F. P. Metcalf | 1 | Cercis glabra Pamp. | 7 | Cercis griffithii Boiss. | 3 | Cercis hybr. | 2 | Cercis occidentalis Torr. ex A. Gray | 37 | Cercis racemosa Oliv. | 6 | Cercis siliquastrum L. | 9 | Cercis spp. | 9 | Cercocarpus montanus Raf. | 1 | Ceropegia linearis E. Mey. subsp. woodii (Schltr.) H. Huber | 1 | Chaenomeles cathayensis (Hemsl.) C. K. Schneid. | 2 | Chaenomeles japonica (Thunb.) Lindl. ex Spach | 3 | Chaenomeles speciosa (Sweet) Nakai | 13 | Chaenomeles spp. | 1 | Chaenomeles ×superba (Frahm) Rehder | 3 | Chamaecrista fasciculata (Michx.) Greene | 1 | Chamaecyparis lawsoniana (A. Murray bis) Parl. | 3 | Chamaecyparis obtusa (Siebold & Zucc.) Endl. | 107 | Chamaecyparis pisifera (Siebold & Zucc.) Endl. | 37 | Chamaecyparis thyoides (L.) Britton et al. | 20 | Chamaecyparis thyoides (L.) Britton et al. var. henryae (H. L. Li) Little | 2 | Chamaedaphne calyculata (L.) Moench | 6 | Chamaelirium luteum (L.) A. Gray | 1 | Chamaemelum nobile (L.) All. | 1 | Chasmanthium latifolium (Michx.) H. O. Yates | 7 | Chasmanthium sessiliflorum (Poir.) H. O. Yates | 5 | Cheilanthes alabamensis (Buckley) Kunze | 1 | Chelidonium majus L. | 1 | Chelone glabra L. | 2 | Chelone lyonii Pursh | 2 | Chelone obliqua L. | 2 | Chelone spp. | 1 | Chelonopsis yagiharana Hisauti & Matsuno | 1 | Chengiopanax sciadophylloides (Franch. & Sav.) C. B. Shang & J. Y. Huang | 2 | Chenopodium album L. | 1 | Chilopsis linearis (Cav.) Sweet | 17 | Chilopsis linearis (Cav.) Sweet subsp. arcuata (Fosberg) Henrickson | 16 | Chilopsis linearis (Cav.) Sweet subsp. linearis | 2 | Chimaphila maculata (L.) Pursh | 2 | Chimaphila umbellata (L.) W. P. C. Barton | 4 | Chimaphila umbellata (L.) W. P. C. Barton subsp. occidentalis (Rydb.) Hultén | 1 | Chimonanthus nitens Oliv. | 2 | Chimonanthus praecox (L.) Link | 12 | Chionanthus pygmaeus Small | 2 | Chionanthus retusus Lindl. & Paxton | 10 | Chionanthus spp. | 1 | Chionanthus virginicus L. | 35 | Chionodoxa luciliae Boiss. | 3 | Chloranthus henryi Hemsl. | 1 | Chloranthus japonicus Siebold | 1 | Chloranthus serratus (Thunb.) Roem. & Schult. | 2 | Chrysanthemum arcticum L. | 1 | Chrysanthemum hybr. | 15 | Chrysanthemum indicum L. | 1 | Chrysanthemum japonense (Makino) Nakai | 1 | Chrysanthemum marginatum (Miq.) N. E. Br. | 5 | Chrysanthemum oreastrum Hance | 1 | Chrysanthemum pacificum Nakai | 5 | Chrysanthemum spp. | 1 | Chrysanthemum weyrichii (Maxim.) Miyabe | 1 | Chrysogonum virginianum L. | 3 | Chrysogonum virginianum L. var. australe (Alexander ex Small) H. E. Ahles | 2 | Chrysojasminum floridum (Bunge) Banfi | 1 | Chrysojasminum fruticans (L.) Banfi | 1 | Chrysojasminum parkeri (Dunn) Banfi | 1 | Chrysopogon zizanioides (L.) Roberty | 1 | Chrysopsis mariana (L.) Elliott | 2 | Cichorium intybus L. | 2 | Cinnamomum aromaticum Nees | 1 | Cinnamomum burmanni (Nees & T. Nees) Blume | 1 | Cinnamomum verum J. Presl | 1 | Cissus trifoliata (L.) L. | 1 | Cistanthe grandiflora (Lindl.) Schltdl. | 1 | Citharexylum berlandieri B. L. Rob. | 1 | Citrus hybr. | 1 | Citrus hystrix DC. | 1 | Citrus japonica Thunb. | 1 | Citrus medica L. | 3 | Citrus medica L. var. sarcodactylis (Hoola van Nooten) Swingle | 1 | Citrus trifoliata L. | 5 | Citrus ×aurantiifolia (Christm.) Swingle | 1 | Citrus ×aurantium L. | 4 | Citrus ×aurantium L. var. chrysocarpa (Hassk.) ined. | 3 | Citrus ×aurantium L. var. sinensis L. | 2 | Citrus ×insitorum Mabb. | 4 | Citrus ×latifolia (Yu. Tanaka) Tanaka | 1 | Citrus ×limon (L.) Osbeck | 1 | Citrus ×limon (L.) Osbeck var. bergamia (Loisel.) ined. | 2 | Citrus ×lumia Risso | 1 | Citrus ×microcarpa Bunge | 2 | Cladrastis delavayi (Franch.) Prain | 1 | Cladrastis kentukea (Dum. Cours.) Rudd | 19 | Clappertonia ficifolia Decne. | 1 | Claytonia virginica L. | 2 | Claytosmunda claytoniana (L.) Metzgar & Rouhan | 3 | Clematis addisonii Britton | 1 | Clematis aethusifolia Turcz. | 1 | Clematis armandii Franch. | 3 | Clematis brevicaudata DC. | 1 | Clematis catesbyana Pursh | 1 | Clematis columbiana (Nutt.) Torr. & A. Gray var. columbiana | 2 | Clematis crispa L. | 2 | Clematis drummondii Torr. & A. Gray | 1 | Clematis florida Thunb. | 1 | Clematis fusca Turcz. | 1 | Clematis glaucophylla Small | 2 | Clematis heracleifolia DC. | 8 | Clematis hexapetala Pall. | 3 | Clematis hybr. | 12 | Clematis koreana Kom. var. carunculosa (Gagnep.) Tamura | 1 | Clematis ligusticifolia Nutt. | 20 | Clematis macropetala Ledeb. | 1 | Clematis montana Buch.-Ham. ex DC. | 1 | Clematis orientalis L. | 2 | Clematis peterae Hand.-Mazz. var. trichocarpa W. T. Wang | 3 | Clematis pitcheri Torr. & A. Gray | 3 | Clematis pogonandra Maxim. | 1 | Clematis potaninii Maxim. | 3 | Clematis serratifolia Rehder | 1 | Clematis songarica Bunge | 1 | Clematis spp. | 8 | Clematis tangutica (Maxim.) Korsh. | 1 | Clematis terniflora DC. | 1 | Clematis terniflora DC. var. mandshurica (Rupr.) Ohwi | 5 | Clematis texensis Buckley | 5 | Clematis tubulosa Turcz. | 3 | Clematis versicolor Small ex Rydb. | 1 | Clematis viorna L. | 1 | Clematis virginiana L. | 9 | Clematis vitalba L. | 2 | Clematoclethra hemsleyi Baill. | 1 | Clerodendrum bungei Steud. | 2 | Clerodendrum cyrtophyllum Turcz. | 1 | Clerodendrum trichotomum Thunb. | 4 | Clethra acuminata Michx. | 17 | Clethra alnifolia L. | 78 | Clethra barbinervis Siebold & Zucc. | 5 | Clethra fargesii Franch. | 2 | Clethra monostachya Rehder & E. H. Wilson | 2 | Clethra pringlei S. Watson | 2 | Clethra spp. | 1 | Clethra tomentosa Lam. | 3 | Cleyera japonica Thunb. | 2 | Cliftonia monophylla (Lam.) Britton ex Sarg. | 4 | Clinopodium douglasii (Benth.) Kuntze | 1 | Clinopodium nepeta (L.) Kuntze | 1 | Clinopodium nepeta (L.) Kuntze subsp. glandulosum (Req.) Govaerts | 1 | Clinopodium nepeta (L.) Kuntze subsp. nepeta | 1 | Clinopodium spp. | 2 | Clintonia udensis Trautv. & C. A. Mey. | 3 | Clintonia umbellulata (Michx.) Morong | 1 | Clitoria mariana L. | 1 | Cocculus carolinus (L.) DC. | 4 | Cocos nucifera L. | 1 | Codonopsis lanceolata (Siebold & Zucc.) Trautv. | 1 | Codonopsis pilosula (Franch.) Nannf. | 1 | Coffea arabica L. | 2 | Coix lacryma-jobi L. | 1 | Colchicum autumnale L. | 2 | Colchicum speciosum Steven | 2 | Colchicum spp. | 5 | Coleus amboinicus Lour. | 2 | Coleus barbatus (Andrews) Benth. | 1 | Coleus scutellarioides (L.) Benth. | 1 | Collinsonia canadensis L. | 1 | Collinsonia japonica (Miq.) Harley | 1 | Colocasia esculenta (L.) Schott | 6 | Colocasia spp. | 1 | Colubrina texensis (Torr. & A. Gray) A. Gray | 1 | Comanthosphace japonica (Miq.) S. Moore ex Hook. f. | 5 | Comanthosphace stellipila (Miq.) S. Moore ex Briq. | 2 | Commelina virginica L. | 1 | Commiphora habessinica (O. Berg) Engl. | 1 | Comospermum platypetalum (Masam.) Rauschert | 1 | Comptonia peregrina (L.) J. M. Coult. | 1 | Coniogramme japonica (Thunb.) Diels | 1 | Conocarpus erectus L. | 2 | Conoclinium coelestinum (L.) DC. | 2 | Conradina canescens A. Gray | 2 | Conradina eximia ined. | 1 | Conradina spp. | 1 | Consolida ajacis (L.) Schur | 1 | Convallaria majalis L. | 5 | Convallaria majalis L. var. keiskei (Miq.) Makino | 1 | Coptis japonica (Thunb.) Makino var. dissecta (Yatabe) Nakai ex Satake | 1 | Coptis japonica (Thunb.) Makino var. major (Miq.) Satake | 1 | Cordyline australis (G. Forst.) Endl. | 1 | Coreopsis grandiflora Hogg ex Sweet | 1 | Coreopsis hybr. | 2 | Coreopsis major Walter | 3 | Coreopsis palmata Nutt. | 1 | Coreopsis pubescens Elliott | 3 | Coreopsis rosea Nutt. | 1 | Coreopsis spp. | 1 | Coreopsis tinctoria Nutt. | 1 | Coreopsis tripteris L. | 2 | Coreopsis verticillata L. | 3 | Coriandrum sativum L. | 1 | Cormus domestica (L.) Spach | 2 | Cornus alba L. | 6 | Cornus alternifolia L. f. | 10 | Cornus amomum Mill. | 7 | Cornus asperifolia Michx. | 3 | Cornus bretschneideri L. Henry | 5 | Cornus canadensis L. | 9 | Cornus capitata Wall. | 4 | Cornus controversa Hemsl. | 9 | Cornus drummondii C. A. Mey. | 2 | Cornus elliptica (Pojark.) Q. Y. Xiang & Boufford | 8 | Cornus florida L. | 144 | Cornus florida L. subsp. florida | 1 | Cornus florida L. subsp. urbiniana (Rose) Rickett | 3 | Cornus foemina Mill. | 6 | Cornus hongkongensis Hemsl. | 2 | Cornus hybr. | 2 | Cornus kousa Bürger ex Hance | 31 | Cornus kousa Hance subsp. chinensis (Osborn) Q. Y. Xiang | 29 | Cornus kousa Hance subsp. kousa | 8 | Cornus macrophylla Wall. | 2 | Cornus mas L. | 8 | Cornus nuttallii Audubon | 7 | Cornus officinalis Siebold & Zucc. | 11 | Cornus pumila Koehne | 1 | Cornus quinquenervis Franch. | 5 | Cornus racemosa Lam. | 7 | Cornus rugosa Lam. | 1 | Cornus sanguinea L. | 8 | Cornus sanguinea L. subsp. australis (C. A. Mey.) Jáv. | 3 | Cornus sericea L. | 13 | Cornus sericea L. subsp. occidentalis (Torr. & A. Gray) Fosberg | 1 | Cornus spp. | 13 | Cornus unalaschkensis Ledeb. | 2 | Cornus walteri Wangerin | 5 | Cornus wilsoniana Wangerin | 2 | Cornus ×dubia Rehder | 1 | Cornus ×elwinortonii T. Molnar & Struwe | 4 | Cornus ×haddenii J. Aldridge & S. Andrews | 2 | Cornus ×rutgersensis T. Molnar & Struwe | 17 | Cornus ×transamericana J. Aldridge & S. Andrews | 1 | Corydalis ochotensis Turcz. | 1 | Corylopsis glabrescens Franch. & Sav. | 4 | Corylopsis glandulifera Hemsl. | 3 | Corylopsis gotoana Makino | 2 | Corylopsis gotoana Makino var. coreana (Uyeki) T. Yamaz. | 1 | Corylopsis himalayana Griff. | 2 | Corylopsis pauciflora Siebold & Zucc. | 5 | Corylopsis platypetala Rehder & E. H. Wilson | 1 | Corylopsis sinensis Hemsl. | 3 | Corylopsis sinensis Hemsl. var. calvescens Rehder & E. H. Wilson | 1 | Corylopsis spicata Siebold & Zucc. | 13 | Corylopsis spp. | 5 | Corylopsis stelligera Guillaumin | 3 | Corylopsis veitchiana Bean | 3 | Corylopsis willmottiae Rehder & E. H. Wilson | 4 | Corylus americana Marshall | 6 | Corylus avellana L. | 2 | Corylus chinensis Franch. | 2 | Corylus colurna L. | 2 | Corylus fargesii (Franch.) C. K. Schneid. | 3 | Corylus heterophylla Fisch. ex Trautv. | 1 | Corylus sieboldiana Blume | 2 | Corylus sieboldiana Blume var. mandshurica (Maxim. & Rupr.) C. K. Schneid. | 1 | Corymbia citriodora (Hook.) K. D. Hill & L. A. S. Johnson | 2 | Cosmos spp. | 1 | Costus spp. | 1 | Cota triumfettii (L.) J. Gay | 1 | Cotinus coggygria Scop. | 16 | Cotinus hybr. | 1 | Cotinus obovatus Raf. | 23 | Cotinus spp. | 1 | Cotoneaster acutifolius Turcz. var. lucidus (Schltdl.) L. T. Lu | 4 | Cotoneaster acutifolius Turcz. var. villosulus Rehder & E. H. Wilson | 1 | Cotoneaster adpressus Bois | 2 | Cotoneaster affinis Lindl. | 1 | Cotoneaster ambiguus Rehder & E. H. Wilson | 1 | Cotoneaster apiculatus Rehder & E. H. Wilson | 1 | Cotoneaster bacillaris Wall. ex Lindl. | 5 | Cotoneaster bullatus Bois var. macrophyllus Rehder & E. H. Wilson | 1 | Cotoneaster foveolatus Rehder & E. H. Wilson | 1 | Cotoneaster franchetii Bois | 2 | Cotoneaster franchetii Bois var. sternianus Turrill | 2 | Cotoneaster glaucophyllus Franch. | 1 | Cotoneaster gracilis Rehder & E. H. Wilson | 2 | Cotoneaster hebephyllus Diels var. hebephyllus | 1 | Cotoneaster horizontalis Decne. | 3 | Cotoneaster horizontalis Decne. var. perpusillus C. K. Schneid. | 1 | Cotoneaster insignis Pojark. | 2 | Cotoneaster integerrimus Medik. | 5 | Cotoneaster laxiflorus J. Jacq. ex Lindl. | 2 | Cotoneaster microphyllus Wall. ex Lindl. | 3 | Cotoneaster multiflorus Bunge | 3 | Cotoneaster multiflorus Bunge var. calocarpus Rehder & E. H. Wilson | 1 | Cotoneaster nitens Rehder & E. H. Wilson | 1 | Cotoneaster nummularius Fisch. & C. A. Mey. | 5 | Cotoneaster pannosus Franch. | 1 | Cotoneaster racemiflorus (Desf.) Schltdl. | 3 | Cotoneaster salicifolius Franch. var. rugosus (E. Pritz.) Rehder & E. H. Wilson | 1 | Cotoneaster shansiensis J. Fryer & B. Hylmö | 1 | Cotoneaster soongoricus (Regel & Herder) Popov | 1 | Cotoneaster spp. | 9 | Cotoneaster submultiflorus Popov | 1 | Cotoneaster verruculosus Diels | 1 | Cotoneaster wilsonii Nakai | 1 | Cotoneaster zabelii C. K. Schneid. | 2 | Crassula muscosa L. | 1 | Crassula ovata (Mill.) Druce | 1 | Crataegus aemula Beadle | 1 | Crataegus aestivalis (Walter) Torr. & A. Gray | 1 | Crataegus alabamensis Beadle | 1 | Crataegus alleghaniensis Beadle | 1 | Crataegus aprica Beadle | 1 | Crataegus ashei Beadle | 2 | Crataegus azarolus L. | 1 | Crataegus berberifolia Torr. & A. Gray | 4 | Crataegus brachyacantha Sarg. & Engelm. | 1 | Crataegus brazoria Sarg. | 1 | Crataegus buckleyi Beadle | 2 | Crataegus calpodendron (Ehrh.) Medik. | 2 | Crataegus caucasica K. Koch | 6 | Crataegus chlorosarca Maxim. | 3 | Crataegus chrysocarpa Ashe | 1 | Crataegus coccinea L. | 1 | Crataegus coccinioides Ashe | 1 | Crataegus colonica Beadle | 1 | Crataegus craytonii Beadle | 1 | Crataegus crus-galli L. | 10 | Crataegus dahurica Koehne ex C. K. Schneid. | 1 | Crataegus dispar Beadle | 1 | Crataegus douglasii Lindl. | 6 | Crataegus flava Aiton | 7 | Crataegus floridana Sarg. | 1 | Crataegus furtiva Beadle | 1 | Crataegus harbisonii Beadle | 5 | Crataegus holmesiana Ashe | 1 | Crataegus hupehensis Sarg. | 1 | Crataegus intricata Lange | 13 | Crataegus intricata Lange var. fortunata (Sarg.) Lance | 1 | Crataegus iracunda Beadle | 2 | Crataegus kansuensis E. H. Wilson | 2 | Crataegus lacrimata Small | 4 | Crataegus laevigata (Poir.) DC. | 1 | Crataegus lancei J. B. Phipps | 2 | Crataegus lanuginosa Sarg. | 1 | Crataegus macrosperma Ashe | 7 | Crataegus marshallii Eggl. | 5 | Crataegus maximowiczii C. K. Schneid. | 4 | Crataegus mendosa Beadle | 1 | Crataegus mexicana DC. | 1 | Crataegus meyeri Pojark. | 2 | Crataegus microphylla K. Koch | 1 | Crataegus mollis (Torr. & A. Gray) Scheele | 3 | Crataegus monogyna Jacq. | 19 | Crataegus munda Beadle | 4 | Crataegus nananixonii J. B. Phipps & OʼKennon | 1 | Crataegus nitida (Engelm. ex Britton & A. Br.) Sarg. | 1 | Crataegus opaca Hook. & Arn. | 2 | Crataegus orientalis Pall. ex M. Bieb. | 7 | Crataegus pennsylvanica Ashe | 1 | Crataegus pentagyna Waldst. & Kit. ex Willd. | 7 | Crataegus perjucunda Sarg. | 1 | Crataegus pexa Beadle | 1 | Crataegus phaenopyrum (L. f.) Medik. | 7 | Crataegus pinnatifida Bunge | 3 | Crataegus pinnatifida Bunge var. major N. E. Br. | 1 | Crataegus pontica K. Koch | 3 | Crataegus pruinosa (H. L. Wendl.) K. Koch | 8 | Crataegus pulcherrima Ashe | 2 | Crataegus punctata Jacq. | 4 | Crataegus reverchonii Sarg. | 2 | Crataegus rhipidophylla Gand. | 1 | Crataegus rhipidophylla Gand. var. rhipidophylla | 1 | Crataegus rubella Beadle | 2 | Crataegus rufula Sarg. | 1 | Crataegus sanguinea Pall. | 4 | Crataegus songarica K. Koch | 5 | Crataegus sororia Beadle | 2 | Crataegus sororia Beadle var. visenda (Beadle) Lance | 1 | Crataegus spathulata Michx. | 4 | Crataegus spp. | 22 | Crataegus succulenta Schrad. ex Link | 2 | Crataegus texana Buckley | 2 | Crataegus tracyi Ashe ex Eggl. | 3 | Crataegus triflora Chapm. | 5 | Crataegus turkestanica Pojark. | 2 | Crataegus uniflora Münchh. | 8 | Crataegus viburnifolia Sarg. | 1 | Crataegus viridis L. | 4 | Crataegus wattiana Hemsl. & Lace | 1 | Crataegus wootoniana Eggl. | 1 | Crataegus ×kyrtostyla Fingerh. | 2 | Crataegus ×lettermanii Sarg. | 1 | Crinum asiaticum L. | 1 | Crinum bulbispermum (Burm. f.) Milne-Redh. & Schweick. | 2 | Crinum spp. | 4 | Crocus chrysanthus (Herb.) Herb. | 1 | Crocus ochroleucus Boiss. & Gaill. | 1 | Crocus sativus L. | 3 | Crocus speciosus M. Bieb. subsp. speciosus | 1 | Crocus tommasinianus Herb. | 4 | Crocus vernus (L.) Hill | 4 | Croton alabamensis E. A. Sm. ex Chapm. | 4 | Croton alabamensis E. A. Sm. ex Chapm. var. alabamensis | 1 | Croton capitatus Michx. | 1 | Croton michauxii G. L. Webster | 1 | Cryptomeria japonica (L. f.) D. Don | 54 | Cunila origanoides (L.) Britton | 4 | Cunninghamia lanceolata (Lamb.) Hook. | 5 | Cunninghamia lanceolata (Lamb.) Hook. var. konishii (Hayata) Y. Fujita | 5 | Cupressus arizonica Greene | 13 | Cupressus arizonica Greene var. arizonica | 1 | Cupressus arizonica Greene var. glabra (Sudw.) Little | 3 | Cupressus bakeri Jeps. | 1 | Cupressus goveniana Gordon | 1 | Cupressus guadalupensis S. Watson var. forbesii (Jeps.) Little | 1 | Cupressus lusitanica Mill. | 1 | Cupressus macnabiana A. Murray bis | 4 | Cupressus nootkatensis D. Don | 5 | Cupressus sargentii Jeps. | 2 | Cupressus sempervirens L. | 1 | Cupressus spp. | 2 | Cupressus vietnamensis (Farjon & Hiep) Silba | 1 | Cupressus ×leylandii A. B. Jacks. & Dallim. | 15 | Curcuma caesia Roxb. | 1 | Curcuma elata Roxb. | 2 | Curcuma longa L. | 5 | Curcuma petiolata Roxb. | 1 | Curcuma phaeocaulis Valeton | 2 | Curcuma spp. | 3 | Curcuma viridiflora Roxb. | 1 | Curio radicans (L. f.) P. V. Heath | 1 | Curio rowleyanus (H. Jacobsen) P. V. Heath | 1 | Curio talinoides (DC.) P. V. Heath | 1 | Curio talinoides (DC.) P. V. Heath var. mandraliscae (Tineo) P. V. Heath | 1 | Cycas revoluta Thunb. | 1 | Cyclamen cilicium Boiss. & Heldr. | 1 | Cyclamen coum Mill. | 1 | Cyclocarya paliurus (Batalin) Iljinsk. | 1 | Cyclosorus acuminatus (Houtt.) Nakai | 1 | Cydonia oblonga Mill. | 1 | Cymbidium goeringii (Rchb. f.) Rchb. f. | 1 | Cymbopogon citratus (DC.) Stapf | 1 | Cymbopogon martini (Roxb.) Will. Watson | 1 | Cynara cardunculus L. | 2 | Cypella coelestis (Lehm.) Diels | 1 | Cyperus involucratus Rottb. | 2 | Cyperus papyrus L. | 2 | Cypripedium japonicum Thunb. | 1 | Cypripedium parviflorum Salisb. | 1 | Cypripedium parviflorum Salisb. var. pubescens (Willd.) O. W. Knight | 1 | Cyrilla racemiflora L. | 12 | Cyrtomium falcatum (L. f.) C. Presl | 4 | Cyrtomium fortunei J. Sm. | 2 | Cystopteris bulbifera (L.) Bernh. | 2 | Cystopteris fragilis (L.) Bernh. | 1 | Cystopteris ×tennesseensis Shaver | 1 | Dalbergia hupeana Hance | 2 | Dalea purpurea Vent. | 2 | Danae racemosa (L.) Moench | 1 | Danthonia spicata (L.) P. Beauv. ex Roem. & Schult. | 4 | Daphne glomerata Lam. | 2 | Daphne jezoensis Maxim. | 2 | Daphne kamtschatica Maxim. | 2 | Daphne mezereum L. | 2 | Daphne odora Thunb. | 1 | Daphne oleoides Schreb. | 1 | Daphniphyllum angustifolium Hutch. | 1 | Daphniphyllum glaucescens Blume | 1 | Daphniphyllum macropodum Miq. | 8 | Daphniphyllum macropodum Miq. var. humile (Maxim. ex Franch. & Sav.) K. Rosenthal | 2 | Daphniphyllum spp. | 1 | Dasiphora fruticosa (L.) Rydb. | 5 | Dasiphora fruticosa (L.) Rydb. subsp. floribunda (Pursh) Kartesz | 1 | Dasiphora parvifolia (Fisch. ex Lehm.) Juz. | 1 | Dasylirion texanum Scheele | 1 | Datura stramonium L. | 1 | Daucus carota L. | 2 | Daucus carota L. subsp. carota | 1 | Davidia involucrata Baill. | 1 | Davidia involucrata Baill. var. involucrata | 2 | Davidia involucrata Baill. var. vilmoriniana (Dode) Hemsl. | 2 | Decaisnea fargesii Franch. | 6 | Decaisnea insignis (Griff.) Hook. f. & Thomson | 1 | Delosperma ashtonii L. Bolus | 1 | Delosperma cooperi (Hook. f.) L. Bolus | 1 | Delosperma lehmannii (Eckl. & Zeyh.) Schwantes | 1 | Delosperma spp. | 1 | Delphinium exaltatum Aiton | 2 | Delphinium tricorne Michx. | 3 | Dendropanax trifidus (Thunb.) Makino ex H. Hara | 2 | Dennstaedtia hirsuta (Sw.) Mett. ex Miq. | 1 | Dennstaedtia punctilobula (Michx.) T. Moore | 4 | Deparia acrostichoides (Sw.) M. Kato | 4 | Deparia tomitaroana (Masam.) R. Sano | 1 | Dermatophyllum secundiflorum (Ortega) Gandhi & Reveal | 3 | Deschampsia cespitosa (L.) P. Beauv. | 1 | Deutzia compacta Craib | 1 | Deutzia coreana H. Lév. | 1 | Deutzia crenata Siebold & Zucc. | 1 | Deutzia discolor Hemsl. | 2 | Deutzia glabrata Kom. | 4 | Deutzia glomeruliflora Franch. | 2 | Deutzia gracilis Siebold & Zucc. | 5 | Deutzia grandiflora Bunge | 2 | Deutzia hamata Koehne ex Gilg & Loes. | 3 | Deutzia hybr. | 2 | Deutzia longifolia Franch. | 4 | Deutzia monbeigii W. W. Sm. | 1 | Deutzia ningpoensis Rehder | 2 | Deutzia parviflora Bunge | 7 | Deutzia parviflora Bunge var. amurensis Regel | 3 | Deutzia parviflora Bunge var. micrantha (Engl.) Rehder | 1 | Deutzia rubens Rehder | 1 | Deutzia scabra Thunb. | 2 | Deutzia spp. | 5 | Deutzia ×hybrida Lemoine | 1 | Deutzia ×kalmiiflora Lemoine | 1 | Deutzia ×magnifica (Lemoine) Rehder | 2 | Deutzia ×rosea (Lemoine) Rehder | 5 | Diabelia serrata (Siebold & Zucc.) Landrein | 1 | Dianthus caryophyllus L. | 1 | Dianthus hybr. | 2 | Dianthus knappii (Pant.) Asch. & Kanitz ex Borbás | 1 | Dianthus longicalyx Miq. | 2 | Dianthus myrtinervius Griseb. | 1 | Dianthus spp. | 1 | Dianthus superbus L. | 2 | Dicentra canadensis (Goldie) Walp. | 3 | Dicentra cucullaria (L.) Bernh. | 3 | Dicentra eximia (Ker Gawl.) Torr. | 2 | Dicentra spp. | 2 | Dichorisandra thyrsiflora J. C. Mikan | 1 | Dichotomanthes tristaniicarpa Kurz | 2 | Diervilla rivularis Gatt. | 2 | Diervilla sessilifolia Buckley | 4 | Digitalis nervosa Steud. & Hochst. ex Benth. | 1 | Digitalis purpurea L. | 2 | Dioscorea nipponica Makino | 1 | Dioscorea spp. | 1 | Dioscorea villosa L. | 1 | Diospyros cathayensis Steward | 1 | Diospyros kaki Thunb. | 1 | Diospyros kaki Thunb. var. sylvestris Makino | 2 | Diospyros lotus L. | 4 | Diospyros oleifera W. C. Cheng | 1 | Diospyros texana Scheele | 4 | Diospyros virginiana L. | 6 | Dipelta floribunda Maxim. | 2 | Diphylleia cymosa Michx. | 1 | Diphylleia grayi F. Schmidt | 2 | Diplazium pycnocarpon (Spreng.) M. Broun | 2 | Dipteronia sinensis Oliv. | 11 | Dirca palustris L. | 1 | Disanthus cercidifolius Maxim. | 1 | Disporopsis fuscopicta Hance | 1 | Disporopsis pernyi (Hua) Diels | 2 | Disporopsis spp. | 1 | Disporum cantoniense (Lour.) Merr. | 5 | Disporum lutescens (Maxim.) Koidz. | 1 | Disporum sessile D. Don ex Schult. & Schult. f. | 4 | Disporum smilacinum A. Gray | 6 | Disporum uniflorum Baker ex S. Moore | 2 | Distylium hybr. | 4 | Distylium myricoides Hemsl. | 2 | Distylium racemosum Siebold & Zucc. | 5 | Distylium spp. | 1 | Ditrysinia fruticosa (W. Bartram) Govaerts & Frodin | 1 | Diuranthera major Hemsl. | 1 | Docynia delavayi (Franch.) C. K. Schneid. | 1 | Docynia indica (Wall.) Decne. | 1 | Dodonaea viscosa Jacq. | 3 | Doellingeria umbellata (Mill.) Nees | 1 | Drosera filiformis Raf. | 1 | Dryopteris campyloptera (Kunze) Clarkson | 1 | Dryopteris carthusiana (Vill.) H. P. Fuchs | 4 | Dryopteris celsa (W. Palmer) Knowlt. et al. | 3 | Dryopteris clintoniana (D. C. Eaton) Dowell | 1 | Dryopteris crassirhizoma Nakai | 3 | Dryopteris cristata (L.) A. Gray | 1 | Dryopteris erythrosora (D. C. Eaton) Kuntze | 8 | Dryopteris fragrans (L.) Schott | 1 | Dryopteris goldieana (Hook. ex Goldie) A. Gray | 4 | Dryopteris intermedia (Willd.) A. Gray | 9 | Dryopteris lacera (Thunb.) Kuntze | 2 | Dryopteris ludoviciana (Kunze) Small | 1 | Dryopteris marginalis (L.) A. Gray | 18 | Dryopteris nipponensis Koidz. | 1 | Dryopteris pycnopteroides (Christ) C. Chr. | 1 | Dryopteris sieboldii (Van Houtte ex Mett.) Kuntze | 1 | Dryopteris spp. | 16 | Dryopteris sublacera Christ | 1 | Dryopteris wallichiana (Spreng.) Hyl. | 1 | Dryopteris ×australis (Wherry) Small | 1 | Duranta erecta L. | 1 | Dypsis decaryi (Jum.) Beentje & J. Dransf. | 1 | Dysphania ambrosioides (L.) Mosyakin & Clemants | 1 | Echeveria nodulosa (Baker) Ed. Otto | 1 | Echeveria runyonii Rose ex E. Walther | 2 | Echeveria shaviana E. Walther | 1 | Echeveria spp. | 2 | Echinacea angustifolia DC. | 4 | Echinacea hybr. | 3 | Echinacea pallida (Nutt.) Nutt. | 2 | Echinacea purpurea (L.) Moench | 13 | Echinops ritro L. subsp. ruthenicus (M. Bieb.) Nyman | 1 | Echinops sphaerocephalus L. | 2 | Echinops spp. | 1 | Echium spp. | 1 | Edgeworthia chrysantha Lindl. | 3 | Ehretia anacua (Terán & Berland.) I. M. Johnst. | 1 | Ehretia microphylla Lam. | 1 | Elaeagnus angustifolia L. | 6 | Elaeagnus macrophylla Thunb. | 2 | Elaeagnus pungens Thunb. | 4 | Elaeagnus spp. | 1 | Elaeagnus umbellata Thunb. | 6 | Elaeagnus ×ebbingei Boom | 3 | Elaeis guineensis Jacq. | 1 | Elephantopus tomentosus L. | 1 | Elettaria cardamomum (L.) Maton | 1 | Eleutherococcus divaricatus (Siebold & Zucc.) S. Y. Hu | 2 | Eleutherococcus gracilistylus (W. W. Sm.) S. Y. Hu | 1 | Eleutherococcus leucorrhizus Oliv. var. setchuenensis (Harms) C. B. Shang & J. Y. Huang | 1 | Eleutherococcus rehderianus (Harms) Nakai | 1 | Eleutherococcus senticosus (Maxim. & Rupr.) Maxim. | 6 | Eleutherococcus sessiliflorus (Maxim. & Rupr.) S. Y. Hu | 1 | Eleutherococcus sieboldianus (Makino) Koidz. | 2 | Elliottia paniculata (Siebold & Zucc.) Benth. & Hook. f. | 1 | Elliottia pyroliflora (Bong.) Brim & P. F. Stevens | 1 | Elymus canadensis L. | 1 | Elymus hystrix L. | 2 | Elymus virginicus L. | 1 | Emmenopterys henryi Oliv. | 8 | Enkianthus campanulatus (Miq.) G. Nicholson | 7 | Enkianthus campanulatus (Miq.) G. Nicholson var. sikokianus Palib. | 2 | Enkianthus cernuus (Siebold & Zucc.) Benth. & Hook. f. ex Makino f. rubens (Maxim.) Ohwi | 1 | Enkianthus chinensis Franch. | 2 | Enkianthus deflexus (Griff.) C. K. Schneid. | 1 | Enkianthus nudipes (Honda) J. Ueno | 2 | Enkianthus perulatus (Miq.) C. K. Schneid. | 2 | Enkianthus quinqueflorus Lour. | 1 | Enkianthus serrulatus (E. H. Wilson) C. K. Schneid. | 2 | Enkianthus subsessilis (Miq.) Makino | 1 | Eomecon chionantha Hance | 1 | Ephedra procera Fisch. & C. A. Mey. | 1 | Epigaea repens L. | 1 | Epimedium acuminatum Franch. | 4 | Epimedium alpinum L. | 2 | Epimedium brachyrrhizum Stearn | 2 | Epimedium brevicornu Maxim. | 1 | Epimedium davidii Franch. | 1 | Epimedium diphyllum Graham | 2 | Epimedium dolichostemon Stearn | 1 | Epimedium fangii Stearn | 1 | Epimedium fargesii Franch. | 1 | Epimedium franchetii Stearn | 4 | Epimedium grandiflorum C. Morren | 19 | Epimedium grandiflorum C. Morren f. violaceum (C. Morren & Decne.) Stearn | 1 | Epimedium grandiflorum C. Morren var. grandiflorum | 1 | Epimedium grandiflorum C. Morren var. koreanum (Nakai) K. Suzuki | 2 | Epimedium hunanense (Hand.-Mazz.) Hand.-Mazz. | 2 | Epimedium latisepalum Stearn | 2 | Epimedium lishihchenii Stearn | 3 | Epimedium membranaceum K. Mey. | 1 | Epimedium myrianthum Stearn | 2 | Epimedium pinnatum Fisch. ex DC. subsp. colchicum (Boiss.) N. Busch | 1 | Epimedium platypetalum K. Mey. | 1 | Epimedium pubescens Maxim. | 1 | Epimedium qingchengshanense G. Y. Zhong & B. L. Guo | 1 | Epimedium sagittatum (Siebold & Zucc.) Maxim. | 1 | Epimedium sempervirens Nakai ex F. Maek. | 6 | Epimedium shuichengense S. Z. He | 1 | Epimedium spp. | 51 | Epimedium stellulatum Stearn | 3 | Epimedium sutchuenense Franch. | 1 | Epimedium truncatum H. R. Liang | 1 | Epimedium wushanense T. S. Ying | 5 | Epimedium ×omeiense Stearn | 3 | Epimedium ×perralchicum Stearn | 5 | Epimedium ×rubrum C. Morren | 3 | Epimedium ×versicolor C. Morren | 2 | Epimedium ×warleyense Stearn | 4 | Epimedium ×youngianum Fisch. & C. A. Mey. | 4 | Epimedium zhushanense K. F. Wu & S. X. Qian | 1 | Equisetum hyemale L. | 1 | Eragrostis spectabilis (Pursh) Steud. | 6 | Eranthis hyemalis (L.) Salisb. | 3 | Erica carnea L. | 2 | Erica ×darleyensis Bean | 2 | Erigenia bulbosa (Michx.) Nutt. | 2 | Erigeron pulchellus Michx. | 2 | Eriobotrya japonica (Thunb.) Lindl. | 1 | Eriogonum spp. | 1 | Eriophorum virginicum L. | 1 | Eryngium leavenworthii Torr. & A. Gray | 1 | Eryngium planum L. | 2 | Eryngium spp. | 1 | Eryngium yuccifolium Michx. | 5 | Erysimum cheiri (L.) Crantz | 1 | Erythrina herbacea L. | 1 | Erythronium albidum Nutt. | 1 | Erythronium americanum Ker Gawl. | 2 | Erythronium hybr. | 1 | Etlingera spp. | 1 | Eubotryoides grayana (Maxim.) H. Hara | 2 | Eubotrys racemosus (L.) Nutt. | 11 | Eubotrys recurvus (Buckley) Britton | 2 | Eucalyptus bridgesiana R. T. Baker | 1 | Eucalyptus globulus Labill. | 2 | Eucomis comosa (Houtt.) H. R. Wehrh. | 2 | Eucomis hybr. | 3 | Eucommia ulmoides Oliv. | 7 | Euonymus alatus (Thunb.) Siebold | 6 | Euonymus alatus (Thunb.) Siebold var. apterus Regel | 2 | Euonymus alatus (Thunb.) Siebold var. pubescens Maxim. | 1 | Euonymus americanus L. | 15 | Euonymus atropurpureus Jacq. | 6 | Euonymus carnosus Hemsl. | 1 | Euonymus europaeus L. | 2 | Euonymus europaeus L. var. intermedius Gaudin | 1 | Euonymus fortunei (Turcz.) Hand.-Mazz. | 2 | Euonymus fortunei (Turcz.) Hand.-Mazz. var. radicans (Siebold ex Miq.) Rehder | 4 | Euonymus grandiflorus Wall. | 1 | Euonymus hamiltonianus Wall. | 2 | Euonymus hamiltonianus Wall. var. maackii (Rupr.) Kom. | 3 | Euonymus hamiltonianus Wall. var. sieboldianus (Blume) Kom. | 4 | Euonymus japonicus Thunb. | 9 | Euonymus lanceolatus Yatabe | 1 | Euonymus latifolius (L.) Mill. | 2 | Euonymus macropterus Rupr. | 1 | Euonymus maximowiczianus (Prokh.) Vorosch. | 1 | Euonymus melananthus Franch. & Sav. | 1 | Euonymus myrianthus Hemsl. | 3 | Euonymus nitidus Benth. | 1 | Euonymus obovatus Nutt. | 2 | Euonymus oxyphyllus Miq. | 5 | Euonymus pauciflorus Maxim. | 1 | Euonymus planipes (Koehne) Koehne | 1 | Euonymus przewalskii Maxim. | 1 | Euonymus sachalinensis (F. Schmidt) Maxim. | 1 | Euonymus sanguineus Loes. | 1 | Euonymus schensianus Maxim. | 1 | Euonymus spp. | 2 | Euonymus spraguei Hayata | 1 | Euonymus velutinus (C. A. Mey.) Fisch. & C. A. Mey. | 1 | Eupatorium altissimum L. | 1 | Eupatorium cannabinum L. | 1 | Eupatorium fortunei Turcz. | 3 | Eupatorium hyssopifolium L. | 1 | Eupatorium perfoliatum L. | 1 | Eupatorium pilosum Walter | 1 | Euphorbia characias L. subsp. wulfenii (Hoppe ex W. D. J. Koch) Radcl.-Sm. | 1 | Euphorbia corollata L. | 3 | Euphorbia dendroides L. | 1 | Euphorbia lomelii V. W. Steinm. | 1 | Euphorbia marginata Pursh | 2 | Euphorbia tirucalli L. | 2 | Euptelea pleiosperma Hook. f. & Thomson | 6 | Euptelea polyandra Siebold & Zucc. | 1 | Eurya emarginata (Thunb.) Makino | 1 | Eurya japonica Thunb. | 4 | Eurya yakushimensis Makino | 1 | Eurybia divaricata (L.) G. L. Nesom | 2 | Eurybia macrophylla (L.) Cass. ex Nees | 1 | Eurybia schreberi (Nees) Nees | 1 | Euscaphis japonica (Thunb.) Kanitz | 7 | Euthamia graminifolia (L.) Nutt. | 1 | Eutrochium dubium (Willd. ex Poir.) E. E. Lamont | 3 | Eutrochium maculatum (L.) E. E. Lamont | 3 | Eutrochium purpureum (L.) E. E. Lamont | 4 | Eutrochium spp. | 1 | Exochorda racemosa (Lindl.) Rehder | 5 | Exochorda racemosa (Lindl.) Rehder subsp. racemosa | 6 | Fagus crenata Blume | 9 | Fagus engleriana Seemen | 2 | Fagus grandifolia Ehrh. | 14 | Fagus japonica Maxim. | 1 | Fagus japonica Maxim. var. multinervis (Nakai) Y. N. Lee ex Govaerts & Frodin | 1 | Fagus longipetiolata Seemen | 1 | Fagus orientalis Lipsky | 13 | Fagus sylvatica L. | 7 | Fallugia paradoxa (D. Don) Endl. ex Torr. | 57 | Farfugium japonicum (L.) Kitam. | 4 | Farfugium japonicum (L.) Kitam. var. giganteum (Siebold & Zucc.) Kitam. | 1 | Fargesia angustissima T. P. Yi | 1 | Fargesia denudata T. P. Yi | 1 | Fargesia dracocephala T. P. Yi | 3 | Fargesia macclureana (Bor) Stapleton | 1 | Fargesia murielae (Gamble) T. P. Yi | 1 | Fargesia nitida (Mitford) Keng f. ex T. P. Yi | 3 | Fargesia robusta T. P. Yi | 3 | Fargesia scabrida T. P. Yi | 3 | Fargesia spp. | 1 | Fatsia japonica (Thunb.) Decne. & Planch. | 14 | Fendlera rupicola Engelm. & A. Gray | 2 | Festuca glauca Vill. | 3 | Festuca ovina L. | 1 | Festuca spp. | 1 | Ficus carica L. | 3 | Ficus hybr. | 1 | Ficus microcarpa L. f. | 3 | Ficus natalensis Hochst. | 1 | Ficus salicaria C. C. Berg | 1 | Ficus sarmentosa Buch.-Ham. ex Sm. var. nipponica (Franch. & Sav.) Corner | 1 | Filipendula palmata (Pall.) Maxim. | 1 | Filipendula rubra (Hill) B. L. Rob. | 3 | Filipendula spp. | 1 | Filipendula ulmaria (L.) Maxim. | 4 | Filipendula ×purpurea Maxim. | 1 | Firmiana simplex (L.) W. Wight | 2 | Flueggea suffruticosa (Pall.) Baill. | 1 | Foeniculum vulgare Mill. | 2 | Foeniculum vulgare Mill. subsp. vulgare var. azoricum (Mill.) Thell. | 1 | Fokienia hodginsii (Dunn) A. Henry & H. H. Thomas | 1 | Fontanesia philliraeoides Labill. subsp. fortunei (Carrière) Yalt. | 2 | Forestiera acuminata (Michx.) Poir. | 1 | Forestiera pubescens Nutt. | 1 | Forestiera spp. | 1 | Forsythia giraldiana Lingelsh. | 2 | Forsythia japonica Makino | 2 | Forsythia mandschurica Uyeki | 1 | Forsythia ovata Nakai | 4 | Forsythia suspensa (Thunb.) Vahl | 3 | Forsythia viridissima Lindl. | 1 | Forsythia viridissima Lindl. var. koreana Rehder | 1 | Forsythia ×intermedia Zabel | 5 | Fortunearia sinensis Rehder & E. H. Wilson | 3 | Fothergilla gardenii L. | 36 | Fothergilla major Lodd. et al. | 26 | Fothergilla milleri W. D. Phillips & J. E. Haynes | 8 | Fothergilla parvifolia Kearney | 2 | Fothergilla spp. | 2 | Fothergilla ×intermedia Ranney & Fantz | 5 | Fragaria virginiana Mill. | 1 | Frangula alnus Mill. | 1 | Frangula betulifolia (Greene) Grubov | 1 | Frangula californica (Eschsch.) A. Gray | 4 | Frangula californica (Eschsch.) A. Gray subsp. californica | 3 | Frangula californica (Eschsch.) A. Gray subsp. occidentalis (J. T. Howell ex Greene) Kartesz & Gandhi | 3 | Frangula californica (Eschsch.) A. Gray subsp. tomentella (Benth.) Kartesz & Gandhi | 3 | Frangula caroliniana (Walter) A. Gray | 11 | Frangula crenata (Siebold & Zucc.) Miq. | 1 | Frangula purshiana (DC.) A. Gray | 4 | Frangula spp. | 2 | Franklinia alatamaha W. Bartram ex Marshall | 2 | Fraxinus americana L. | 11 | Fraxinus baroniana Diels | 1 | Fraxinus biltmoreana Beadle | 1 | Fraxinus caroliniana Mill. | 1 | Fraxinus chinensis Roxb. | 4 | Fraxinus chinensis Roxb. subsp. rhynchophylla (Hance) A. E. Murray | 1 | Fraxinus excelsior L. | 1 | Fraxinus lanuginosa Koidz. | 1 | Fraxinus longicuspis Siebold & Zucc. | 1 | Fraxinus mandshurica Rupr. | 3 | Fraxinus ornus L. | 1 | Fraxinus paxiana Lingelsh. | 1 | Fraxinus pennsylvanica Marshall | 3 | Fraxinus profunda (Bush) Bush | 2 | Fraxinus quadrangulata Michx. | 2 | Fraxinus sieboldiana Blume | 3 | Fraxinus spp. | 2 | Fraxinus stylosa Lingelsh. | 2 | Fremontodendron californicum (Torr.) Coville | 2 | Fritillaria atropurpurea Nutt. | 1 | Fritillaria camschatcensis (L.) Ker Gawl. | 1 | Fritillaria imperialis L. | 2 | Fuchsia spp. | 1 | Gaillardia ×grandiflora hort. ex Van Houtte | 1 | Galanthus alpinus Sosn. var. alpinus | 1 | Galanthus elwesii Hook. f. | 3 | Galanthus ikariae Baker | 1 | Galanthus nivalis L. | 5 | Galanthus plicatus M. Bieb. | 1 | Galanthus rizehensis Stern | 1 | Galanthus spp. | 1 | Galax urceolata (Poir.) Brummitt | 1 | Galium mollugo L. | 1 | Galium odoratum (L.) Scop. | 1 | Galium spp. | 1 | Garberia heterophylla (W. Bartram) Merr. & F. Harper | 1 | Gardenia jasminoides J. Ellis | 10 | Garrya congdonii Eastw. | 1 | Garrya elliptica Douglas ex Lindl. | 1 | Garrya flavescens S. Watson | 1 | Garrya fremontii Torr. | 3 | Garrya ovata Benth. | 1 | Gaultheria procumbens L. | 6 | Gaultheria shallon Pursh | 1 | Gaylussacia baccata (Wangenh.) K. Koch | 3 | Gaylussacia brachycera (Michx.) A. Gray | 24 | Gaylussacia dumosa (Andrews) Torr. & A. Gray | 1 | Gaylussacia frondosa (L.) Torr. & A. Gray | 2 | Gaylussacia frondosa (L.) Torr. & A. Gray var. nana A. Gray | 1 | Gaylussacia mosieri Small | 1 | Gaylussacia spp. | 5 | Gelsemium rankinii Small | 1 | Gelsemium sempervirens (L.) J. St.-Hil. | 4 | Gentiana andrewsii Griseb. | 2 | Gentiana clausa Raf. | 1 | Gentiana spp. | 1 | Geranium albanum M. Bieb. | 1 | Geranium gymnocaulon DC. | 1 | Geranium hybr. | 5 | Geranium macrorrhizum L. | 2 | Geranium maculatum L. | 8 | Geranium sanguineum L. | 2 | Geranium sinense R. Knuth | 1 | Geranium soboliferum Kom. | 1 | Geranium ×oxonianum Yeo | 2 | Geum aleppicum Jacq. | 1 | Geum coccineum Sm. | 1 | Geum fragarioides (Michx.) Smedmark | 1 | Geum spp. | 3 | Geum triflorum Pursh | 1 | Geum urbanum L. | 2 | Gillenia stipulata (Muhl. ex Willd.) Nutt. | 1 | Gillenia trifoliata (L.) Moench | 4 | Ginkgo biloba L. | 34 | Gladiolus communis L. | 2 | Gladiolus dalenii Van Geel | 1 | Glandularia spp. | 2 | Glaucidium palmatum Siebold & Zucc. | 1 | Glaucium flavum Crantz | 1 | Gleditsia aquatica Marshall | 1 | Gleditsia caspica Desf. | 1 | Gleditsia japonica Miq. | 1 | Gleditsia japonica Miq. var. japonica | 3 | Gleditsia sinensis Lam. | 2 | Gleditsia triacanthos L. | 5 | Gleditsia triacanthos L. f. inermis (L.) C. K. Schneid. | 1 | Glehnia littoralis F. Schmidt ex Miq. | 1 | Gloriosa spp. | 1 | Glossopetalon spinescens A. Gray | 1 | Glycine max (L.) Merr. | 1 | Glycyrrhiza glabra L. | 1 | Glyptostrobus pensilis (Staunton ex D. Don) K. Koch | 5 | Gonialoe variegata (L.) Boatwr. & J. C. Manning | 1 | Goodyera spp. | 1 | Gordonia lasianthus (L.) J. Ellis | 6 | Gossypium hirsutum L. | 1 | Grewia biloba G. Don var. parviflora (Bunge) Hand.-Mazz. | 1 | Guaiacum angustifolium Engelm. | 1 | Gymnocladus chinensis Baill. | 1 | Gymnocladus dioicus (L.) K. Koch | 8 | Gynostemma pentaphyllum (Thunb.) Makino | 1 | Haemanthus albiflos Jacq. | 1 | Hakonechloa macra (Munro) Makino | 11 | Halesia carolina L. | 122 | Halesia diptera J. Ellis | 9 | Halesia diptera J. Ellis var. magniflora R. K. Godfrey | 1 | Hamamelis hybr. | 4 | Hamamelis japonica Siebold & Zucc. | 3 | Hamamelis mexicana Standl. | 1 | Hamamelis mollis Oliv. | 10 | Hamamelis ovalis S. W. Leonard | 39 | Hamamelis spp. | 9 | Hamamelis vernalis Sarg. | 21 | Hamamelis vernalis Sarg. f. tomentella Rehder | 2 | Hamamelis virginiana L. | 77 | Hamamelis ×intermedia Rehder | 20 | Haworthia retusa (L.) Duval | 1 | Hedeoma pulegioides (L.) Pers. | 2 | Hedera helix L. | 5 | Hedera helix L. subsp. helix | 1 | Hedera nepalensis K. Koch | 1 | Hedera rhombea (Miq.) Siebold ex Bean | 1 | Hedychium coronarium J. Koenig | 1 | Hedychium spicatum Sm. | 3 | Hedychium spp. | 6 | Hedychium thyrsiforme Sm. | 1 | Hedychium yunnanense Gagnep. | 1 | Helenium autumnale L. | 1 | Helenium flexuosum Raf. | 1 | Helenium spp. | 1 | Helianthemum spp. | 1 | Helianthus angustifolius L. | 6 | Helianthus annuus L. | 1 | Helianthus atrorubens L. | 1 | Helianthus divaricatus L. | 1 | Helianthus giganteus L. | 1 | Helianthus mollis Lam. | 1 | Helianthus occidentalis Riddell | 1 | Helianthus spp. | 1 | Helianthus ×laetiflorus Pers. | 1 | Heliopsis helianthoides (L.) Sweet | 3 | Helleborus foetidus L. | 1 | Helleborus niger L. | 1 | Helleborus orientalis Lam. | 7 | Helleborus spp. | 8 | Helleborus thibetanus Franch. | 3 | Helleborus ×hybridus hort. ex Voss | 10 | Helwingia chinensis Batalin | 3 | Helwingia japonica (Thunb.) F. Dietr. | 3 | Hemerocallis citrina Baroni | 5 | Hemerocallis dumortieri C. Morren | 2 | Hemerocallis esculenta Koidz. | 1 | Hemerocallis exaltata Stout | 2 | Hemerocallis fulva (L.) L. | 29 | Hemerocallis fulva (L.) L. var. angustifolia Baker | 5 | Hemerocallis fulva (L.) L. var. maculata Baroni | 1 | Hemerocallis lilioasphodelus L. | 4 | Hemerocallis middendorffii Trautv. & C. A. Mey. | 6 | Hemerocallis minor Mill. | 4 | Hemerocallis multiflora Stout | 2 | Hemerocallis spp. | 443 | Hemerocallis thunbergii Baker | 4 | Hemerocallis yezoensis H. Hara | 2 | Hemiboea subcapitata C. B. Clarke | 2 | Heptacodium miconioides Rehder | 4 | Heptapleurum arboricola Hayata | 1 | Heracleum sphondylium L. subsp. montanum (Schleich. ex Gaudin) Briq. | 1 | Hesperaloe funifera (K. Koch) Trel. | 1 | Hesperaloe parviflora (Torr.) J. M. Coult. | 1 | Hesperis matronalis L. | 1 | Heteromeles arbutifolia (Lindl.) M. Roem. | 11 | Heuchera americana L. | 6 | Heuchera hybr. | 11 | Heuchera longiflora Rydb. | 4 | Heuchera richardsonii R. Br. | 1 | Heuchera villosa Michx. | 8 | Heuchera ×brizoides hort. ex Lemoine | 1 | Hexastylis arifolia (Michx.) Small | 1 | Hexastylis contracta H. L. Blomq. | 1 | Hexastylis minor (Ashe) H. L. Blomq. | 1 | Hexastylis shuttleworthii (Britten & Baker f.) Small | 1 | Hexastylis shuttleworthii (Britten & Baker f.) Small var. harperi Gaddy | 1 | Hexastylis speciosa R. M. Harper | 2 | Hibbertia scandens (Willd.) Gilg | 1 | Hibiscus coccineus Walter | 1 | Hibiscus hybr. | 23 | Hibiscus laevis All. | 4 | Hibiscus lasiocarpos Cav. | 1 | Hibiscus moscheutos L. | 3 | Hibiscus spp. | 4 | Hibiscus striatus Cav. subsp. lambertianus (Kunth) O. J. Blanch. | 1 | Hibiscus syriacus L. | 9 | Hieracium umbellatum L. | 1 | Hieracium venosum L. | 1 | Holodiscus discolor (Pursh) Maxim. | 3 | Holodiscus dumosus (Nutt. ex Hook.) A. Heller | 1 | Hordeum vulgare L. | 1 | Hosta clausa Nakai | 2 | Hosta hybr. | 84 | Hosta kikutii F. Maek. | 1 | Hosta laevigata W. G. Schmid | 1 | Hosta longipes (Franch. & Sav.) L. H. Bailey | 2 | Hosta montana F. Maek. | 4 | Hosta nigrescens (Makino) F. Maek. | 1 | Hosta plantaginea (Lam.) Asch. | 3 | Hosta plantaginea (Lam.) Asch. var. japonica Kikuchi & F. Maek. | 2 | Hosta sieboldiana (Hook.) Engl. | 1 | Hosta spp. | 5 | Hosta tsushimensis N. Fujita | 2 | Hosta ventricosa Stearn | 5 | Hosta venusta F. Maek. | 1 | Hosta yingeri S. B. Jones | 2 | Houstonia caerulea L. | 4 | Hovenia dulcis Thunb. | 2 | Humulus lupulus L. var. lupulus | 8 | Hyacinthoides hispanica (Mill.) Rothm. | 3 | Hyacinthus orientalis L. | 4 | Hydrangea alternifolia Siebold | 1 | Hydrangea ampla (Chun) Y. De Smet & C. Granados | 2 | Hydrangea anomala D. Don | 1 | Hydrangea arborescens L. | 54 | Hydrangea aspera Buch.-Ham. ex D. Don | 4 | Hydrangea barbara (L.) Bernd Schulz | 7 | Hydrangea bifida (Maxim.) Y. De Smet & C. Granados | 3 | Hydrangea bretschneideri Dippel | 5 | Hydrangea chinensis Maxim. | 2 | Hydrangea cinerea Small | 4 | Hydrangea febrifuga (Lour.) Y. De Smet & C. Granados | 1 | Hydrangea heteromalla D. Don | 4 | Hydrangea hirta (Thunb.) Siebold | 1 | Hydrangea hydrangeoides (Siebold & Zucc.) Bernd Schulz | 5 | Hydrangea involucrata Siebold | 1 | Hydrangea longipes Franch. | 4 | Hydrangea macrophylla (Thunb.) Ser. | 49 | Hydrangea paniculata Siebold | 31 | Hydrangea petiolaris Siebold & Zucc. | 12 | Hydrangea platyarguta Y. De Smet & Samain | 2 | Hydrangea quercifolia W. Bartram | 106 | Hydrangea radiata Walter | 10 | Hydrangea robusta Hook. f. & Thomson | 2 | Hydrangea scandens (L. f.) Ser. | 1 | Hydrangea serrata (Thunb.) Ser. | 25 | Hydrangea serrata (Thunb.) Ser. var. serrata | 5 | Hydrangea sikokiana Maxim. | 1 | Hydrangea spp. | 7 | Hydrangea strigosa Rehder | 1 | Hydrangea xanthoneura Diels | 2 | Hydrastis canadensis L. | 3 | Hydrocleys nymphoides (Humb. & Bonpl. ex Willd.) Buchenau | 1 | Hydrophyllum canadense L. | 1 | Hydrophyllum virginianum L. | 2 | Hylomecon hylomeconoides (Nakai) Y. N. Lee | 1 | Hylotelephium erythrostictum (Miq.) H. Ohba | 1 | Hylotelephium sieboldii (Sweet ex Hook.) H. Ohba | 2 | Hylotelephium spectabile (Boreau) H. Ohba | 2 | Hylotelephium spp. | 4 | Hylotelephium telephium (L.) H. Ohba | 2 | Hypericum adpressum W. P. C. Barton | 1 | Hypericum anagalloides Cham. & Schltdl. | 1 | Hypericum androsaemum L. | 1 | Hypericum apocynifolium Small | 1 | Hypericum calycinum L. | 2 | Hypericum canadense L. | 1 | Hypericum crux-andreae (L.) Crantz | 1 | Hypericum dolabriforme Vent. | 1 | Hypericum frondosum Michx. | 2 | Hypericum gentianoides (L.) Britton et al. | 3 | Hypericum hypericoides (L.) Crantz | 2 | Hypericum kalmianum L. | 1 | Hypericum lancasteri N. Robson | 1 | Hypericum latisepalum (N. Robson) N. Robson | 1 | Hypericum monogynum L. | 2 | Hypericum mutilum L. | 3 | Hypericum patulum Thunb. | 1 | Hypericum perforatum L. | 5 | Hypericum prolificum L. | 3 | Hypericum scouleri Hook. | 1 | Hypericum spp. | 2 | Hypoxis hirsuta (L.) Coville | 1 | Hyssopus officinalis L. | 2 | Iberis sempervirens L. | 2 | Idesia polycarpa Maxim. | 6 | Ilex ambigua Torr. | 21 | Ilex amelanchier M. A. Curtis ex Chapm. | 14 | Ilex aquifolium L. | 13 | Ilex asprella (Hook. & Arn.) Champ. ex Benth. | 1 | Ilex bioritsensis Hayata | 1 | Ilex buergeri Miq. | 1 | Ilex cassine L. | 10 | Ilex cassine L. var. angustifolia Aiton | 1 | Ilex ciliospinosa Loes. | 1 | Ilex colchica Pojark. | 7 | Ilex coriacea (Pursh) Chapm. | 9 | Ilex cornuta Lindl. & Paxton | 24 | Ilex crenata Thunb. | 42 | Ilex crenata Thunb. var. paludosa (Nakai) H. Hara | 2 | Ilex cuthbertii Small | 2 | Ilex decidua Walter | 29 | Ilex dimorphophylla Koidz. | 1 | Ilex fargesii Franch. | 4 | Ilex ficoidea Hemsl. | 1 | Ilex geniculata Maxim. | 3 | Ilex glabra (L.) A. Gray | 22 | Ilex hybr. | 72 | Ilex hyrcana Pojark. | 1 | Ilex integra Thunb. | 8 | Ilex kwangtungensis Merr. | 1 | Ilex laevigata (Pursh) A. Gray | 5 | Ilex latifolia Thunb. | 1 | Ilex leucoclada (Maxim.) Makino | 1 | Ilex litseifolia Hu & Tang | 1 | Ilex liukiuensis Loes. | 1 | Ilex longipes Chapm. ex Trel. | 13 | Ilex macfadyenii (Walp.) Rehder | 1 | Ilex macrocarpa Oliv. | 4 | Ilex macropoda Miq. | 4 | Ilex micrococca Maxim. | 1 | Ilex montana Torr. & A. Gray | 13 | Ilex mucronata (L.) M. Powell et al. | 6 | Ilex myrtifolia Walter | 16 | Ilex opaca Aiton | 146 | Ilex opaca Aiton var. arenicola (Ashe) Ashe | 2 | Ilex paraguariensis A. St.-Hil. | 1 | Ilex pedunculosa Miq. | 6 | Ilex perado Aiton | 1 | Ilex perado Aiton subsp. platyphylla (Webb & Berthel.) S. Andrews | 1 | Ilex pernyi Franch. | 2 | Ilex purpurea Hassk. | 3 | Ilex rotunda Thunb. | 2 | Ilex rubra S. Watson | 1 | Ilex serrata Thunb. | 6 | Ilex shennongjiaensis T. R. Dudley & S. C. Sun | 1 | Ilex spp. | 5 | Ilex suaveolens (H. Lév.) Loes. | 1 | Ilex szechuanensis Loes. | 1 | Ilex triflora Blume var. kanehirae (Yamam.) S. Y. Hu | 1 | Ilex verticillata (L.) A. Gray | 85 | Ilex verticillata (L.) A. Gray f. chrysocarpa B. L. Rob. | 1 | Ilex vomitoria Aiton | 24 | Ilex vomitoria Sol. ex Aiton f. pendula Foret & Solymosy | 2 | Ilex wilsonii Loes. | 2 | Ilex ×altaclerensis (Loudon) Dallim. | 2 | Ilex ×aquipernyi Gable ex Whittem. | 2 | Ilex ×attenuata Ashe | 13 | Ilex ×koehneana Loes. | 9 | Ilex ×meserveae S. Y. Hu | 2 | Ilex ×wandoensis C. F. Mill. & M. Kim | 7 | Ilex zhejiangensis C. J. Tseng ex S. K. Chen & Y. X. Feng | 1 | Illicium anisatum L. | 3 | Illicium floridanum J. Ellis | 6 | Illicium henryi Diels | 5 | Illicium lanceolatum A. C. Sm. | 1 | Illicium parviflorum Michx. ex Vent. | 4 | Illicium spp. | 2 | Impatiens glandulifera Royle | 1 | Impatiens omeiana Hook. f. | 1 | Impatiens pallida Nutt. | 1 | Impatiens pritzelii Hook. f. | 1 | Impatiens spp. | 1 | Imperata cylindrica (L.) Raeusch. | 2 | Indigofera amblyantha Craib | 3 | Indigofera bungeana Walp. | 2 | Indigofera decora Lindl. | 1 | Indigofera kirilowii Maxim. ex Palib. | 3 | Indigofera spp. | 2 | Indigofera tinctoria L. | 1 | Inula helenium L. | 2 | Iodanthus pinnatifidus (Michx.) Steud. | 1 | Ipheion spp. | 3 | Ipheion uniflorum (Lindl.) Raf. | 3 | Ipomoea pandurata (L.) G. Mey. | 1 | Iris cristata Aiton | 9 | Iris danfordiae (Baker) Boiss. | 3 | Iris delavayi Micheli | 1 | Iris dichotoma Pall. | 1 | Iris domestica Goldblatt & Mabb. | 6 | Iris ensata Thunb. | 21 | Iris fulva Ker Gawl. | 1 | Iris hybr. | 54 | Iris japonica Thunb. | 2 | Iris lactea Pall. | 4 | Iris pallida Lam. | 4 | Iris prismatica Pursh | 1 | Iris reticulata M. Bieb. | 12 | Iris sanguinea Hornem. | 7 | Iris setosa Pall. ex Link | 2 | Iris sibirica L. | 3 | Iris spp. | 5 | Iris spuria L. subsp. notha (M. Bieb.) Asch. & Graebn. | 1 | Iris spuria L. subsp. sogdiana (Bunge) B. Mathew | 1 | Iris tectorum Maxim. | 9 | Iris verna L. | 1 | Iris versicolor L. | 7 | Iris virginica L. | 3 | Iris wilsonii C. H. Wright | 1 | Iris ×germanica L. var. florentina Dykes | 2 | Iris ×norrisii (L. W. Lenz) C. Whitehouse | 3 | Iris ×sambucina L. | 1 | Isatis tinctoria L. | 2 | Isodon longitubus (Miq.) Kudô | 3 | Isodon umbrosus (Maxim.) Hara | 1 | Itea chinensis Hook. & Arn. | 1 | Itea virginica L. | 30 | Iva angustifolia Nutt. ex DC. | 1 | Iva axillaris Pursh | 3 | Iva frutescens L. | 53 | Iva imbricata Walter | 1 | Japonicalia delphiniifolia (Siebold & Zucc.) C. Ren & Q. E. Yang | 1 | Jasminum beesianum Forrest & Diels | 1 | Jasminum grandiflorum L. | 1 | Jasminum mesnyi Hance | 1 | Jasminum nudiflorum Lindl. | 3 | Jasminum officinale L. | 2 | Jasminum officinale L. var. officinale | 1 | Jasminum sambac (L.) Aiton | 1 | Jasminum tortuosum Willd. | 1 | Jatropha curcas L. | 1 | Jatropha podagrica Hook. | 1 | Jeffersonia diphylla (L.) Pers. | 2 | Jeffersonia dubia (Maxim.) Benth. & Hook. f. ex Baker & S. Moore | 2 | Juglans ailantifolia Carrière | 1 | Juglans cathayensis Dode | 1 | Juglans cinerea L. | 8 | Juglans mandshurica Maxim. | 2 | Juglans microcarpa Berland. | 1 | Juglans nigra L. | 1 | Juglans regia L. | 2 | Juglans spp. | 1 | Juncus effusus L. | 2 | Juncus inflexus L. | 2 | Juncus pallidus R. Br. | 1 | Juncus spp. | 3 | Juniperus ashei J. Buchholz | 3 | Juniperus californica Carrière | 8 | Juniperus chinensis L. | 48 | Juniperus chinensis L. var. procumbens Endl. | 13 | Juniperus chinensis L. var. sargentii A. Henry | 4 | Juniperus coahuilensis (Martínez) Gaussen ex R. P. Adams | 1 | Juniperus communis L. | 30 | Juniperus communis L. var. depressa Pursh | 3 | Juniperus communis L. var. saxatilis Pall. | 15 | Juniperus deltoides R. P. Adams | 4 | Juniperus deppeana Steud. | 4 | Juniperus excelsa M. Bieb. | 5 | Juniperus foetidissima Willd. | 2 | Juniperus horizontalis Moench | 27 | Juniperus macrocarpa Sm. | 1 | Juniperus monosperma (Engelm.) Sarg. | 2 | Juniperus occidentalis Hook. | 2 | Juniperus occidentalis Hook. var. occidentalis | 1 | Juniperus osteosperma (Torr.) Little | 11 | Juniperus oxycedrus L. | 6 | Juniperus oxycedrus L. subsp. oxycedrus | 1 | Juniperus phoenicea L. | 3 | Juniperus pinchotii Sudw. | 2 | Juniperus polycarpos K. Koch | 3 | Juniperus rigida Siebold & Zucc. | 9 | Juniperus rigida Siebold & Zucc. subsp. conferta (Parl.) Kitam. | 13 | Juniperus sabina L. | 13 | Juniperus scopulorum Sarg. | 1 | Juniperus spp. | 1 | Juniperus squamata Buch.-Ham. ex D. Don | 5 | Juniperus tibetica Kom. | 1 | Juniperus virginiana L. | 32 | Juniperus virginiana L. var. silicicola (Small) A. E. Murray | 1 | Juniperus virginiana L. var. virginiana | 2 | Juniperus ×pfitzeriana (Späth) P. A. Schmidt | 13 | Justicia americana (L.) Vahl | 1 | Kadsura coccinea (Lem.) A. C. Sm. | 1 | Kadsura japonica (L.) Dunal | 5 | Kaempferia rotunda L. | 1 | Kalanchoe beharensis Drake | 1 | Kalanchoe bracteata Scott-Elliot | 1 | Kalanchoe gastonis-bonnieri Raym.-Hamet & H. Perrier | 1 | Kalanchoe humilis Britten | 1 | Kalanchoe tetraphylla H. Perrier | 1 | Kalmia angustifolia L. | 13 | Kalmia angustifolia L. var. carolina (Small) Fernald | 1 | Kalmia buxifolia (P. J. Bergius) Gift & Kron | 2 | Kalmia cuneata Michx. | 1 | Kalmia hirsuta Walter | 2 | Kalmia latifolia L. | 55 | Kalmia microphylla (Hook.) A. Heller var. microphylla | 1 | Kalmia polifolia Wangenh. | 3 | Kalmia procumbens (L.) Gift et al. ex Galasso et al. | 1 | Kalmiopsis leachiana (L. F. Hend.) Rehder | 2 | Kalopanax septemlobus (Thunb.) Koidz. | 4 | Kerria japonica (L.) DC. | 3 | Keteleeria davidiana (Bertrand) Beissn. | 2 | Keteleeria evelyniana Mast. | 1 | Kirengeshoma palmata Yatabe | 2 | Kleinia petraea (R. E. Fr.) C. Jeffrey | 1 | Kleinia picticaulis (P. R. O. Bally) C. Jeffrey | 1 | Kniphofia galpinii Baker | 1 | Kniphofia hybr. | 9 | Koelreuteria bipinnata Franch. | 1 | Koelreuteria paniculata Laxm. | 14 | Koenigia ×fennica (Reiersen) T. M. Schust. & Reveal | 1 | Kolkwitzia amabilis Graebn. | 3 | Kosteletzkya pentacarpos (L.) Ledeb. | 2 | Kroenleinia grusonii (Hildm.) Lodé | 1 | Lablab purpureus (L.) Sweet | 1 | Laburnum alpinum (Mill.) J. Presl | 6 | Laburnum anagyroides Medik. | 1 | Lagerstroemia fauriei Koehne | 12 | Lagerstroemia hybr. | 38 | Lagerstroemia indica L. | 56 | Lagerstroemia limii Merr. | 1 | Lagerstroemia subcostata Koehne | 2 | Lagerstroemia ×amabilis Makino | 1 | Lagerstroemia ×egolfii Whittem. & Schori | 49 | Lamprocapnos spectabilis (L.) Fukuhara | 3 | Lantana strigocamara R. W. Sanders | 1 | Larix gmelinii (Rupr.) Rupr. | 4 | Larix gmelinii (Rupr.) Rupr. var. olgensis (A. Henry) Ostenf. & Syrach | 4 | Larix gmelinii (Rupr.) Rupr. var. principis-rupprechtii (Mayr) Pilg. | 2 | Larix kaempferi (Lamb.) Carrière | 2 | Larix laricina (Du Roi) K. Koch | 4 | Larix mastersiana Rehder & E. H. Wilson | 1 | Larix occidentalis Nutt. | 3 | Larix potaninii Batalin | 1 | Lathyrus davidii Hance | 3 | Lathyrus japonicus Willd. | 1 | Laurus nobilis L. | 6 | Lavandula angustifolia Mill. | 25 | Lavandula dentata L. var. candicans Batt. | 1 | Lavandula latifolia Medik. | 1 | Lavandula multifida L. | 2 | Lavandula pedunculata (Mill.) Cav. | 2 | Lavandula spp. | 4 | Lavandula stoechas L. | 7 | Lavandula viridis LʼHér. | 1 | Lavandula ×chaytoriae Upson & S. Andrews | 3 | Lavandula ×heterophylla Viv. | 1 | Lavandula ×intermedia Emeric ex Loisel. | 17 | Leersia virginica Willd. | 1 | Leibnitzia anandria (L.) Turcz. | 1 | Leitneria floridana Chapm. | 2 | Leonurus cardiaca L. | 1 | Leptodermis oblonga Bunge | 2 | Lespedeza bicolor Turcz. | 4 | Lespedeza buergeri Miq. | 1 | Lespedeza davidii Franch. | 1 | Lespedeza spp. | 2 | Lespedeza thunbergii (DC.) Nakai | 2 | Lespedeza thunbergii (DC.) Nakai subsp. formosa (Vogel) H. Ohashi | 1 | Lespedeza thunbergii (DC.) Nakai subsp. thunbergii | 1 | Leucanthemum ×superbum (Bergmans ex J. W. Ingram) D. H. Kent | 3 | Leucojum aestivum L. | 5 | Leucothoe axillaris (Lam.) D. Don | 13 | Leucothoe davisiae Torr. ex A. Gray | 2 | Leucothoe fontanesiana (Steud.) Sleumer | 14 | Leucothoe spp. | 1 | Levisticum officinale W. D. J. Koch | 1 | Leycesteria crocothyrsos Airy Shaw | 1 | Leycesteria formosa Wall. | 2 | Leymus arenarius (L.) Hochst. | 2 | Leymus mollis (Trin.) Pilg. | 1 | Liatris aspera Michx. | 1 | Liatris oligocephala J. R. Allison | 1 | Liatris pilosa (Aiton) Willd. | 3 | Liatris pycnostachya Michx. | 1 | Liatris spicata (L.) Willd. | 1 | Liatris spp. | 6 | Ligularia dentata (A. Gray) H. Hara | 2 | Ligularia fischeri Turcz. | 1 | Ligularia japonica (L. f.) DC. | 2 | Ligularia spp. | 1 | Ligustrum foliosum Nakai | 1 | Ligustrum japonicum Thunb. | 3 | Ligustrum leucanthum (S. Moore) P. S. Green | 1 | Ligustrum lucidum W. T. Aiton | 1 | Ligustrum obtusifolium Siebold & Zucc. | 1 | Ligustrum quihoui Carrière | 1 | Ligustrum quihoui Carrière var. latifolium Nakai | 1 | Ligustrum sempervirens (Franch.) Lingelsh. | 3 | Ligustrum sinense Lour. | 3 | Ligustrum vulgare L. | 2 | Lilium auratum Lindl. | 1 | Lilium callosum Siebold & Zucc. | 1 | Lilium duchartrei Franch. | 2 | Lilium formosanum Wallace | 2 | Lilium hansonii Leichtlin ex D. D. T. Moore | 1 | Lilium henryi Baker | 4 | Lilium hybr. | 20 | Lilium iridollae M. G. Henry | 3 | Lilium lancifolium Thunb. | 5 | Lilium lankongense Franch. | 1 | Lilium leichtlinii Hook. f. var. maximowiczii (Regel) Baker | 1 | Lilium leucanthum (Baker) Baker | 2 | Lilium longiflorum Thunb. | 1 | Lilium maculatum Thunb. | 1 | Lilium pensylvanicum Ker Gawl. | 1 | Lilium regale E. H. Wilson | 3 | Lilium sargentiae E. H. Wilson | 1 | Lilium speciosum Thunb. | 1 | Lilium superbum L. | 1 | Limnobium spongia (Bosc) Rich. ex Steud. | 1 | Limonium meyeri (Boiss.) Kuntze | 1 | Lindera aggregata (Sims) Kosterm. | 2 | Lindera akoensis Hayata | 1 | Lindera angustifolia W. C. Cheng | 1 | Lindera angustifolia W. C. Cheng var. glabra (Nakai) J. M. H. Shaw | 1 | Lindera benzoin (L.) Blume | 27 | Lindera chienii W. C. Cheng | 1 | Lindera erythrocarpa Makino | 4 | Lindera floribunda (C. K. Allen) H. P. Tsui | 1 | Lindera glauca (Siebold & Zucc.) Blume | 5 | Lindera limprichtii H. J. P. Winkl. | 1 | Lindera neesiana (Wall. ex Nees) Kurz | 3 | Lindera obtusiloba Blume | 20 | Lindera praecox (Siebold & Zucc.) Blume | 3 | Lindera reflexa Hemsl. | 2 | Lindera spp. | 2 | Lindera triloba (Siebold & Zucc.) Blume | 2 | Lindera umbellata Thunb. | 1 | Linnaea borealis L. | 1 | Linum stelleroides Planch. | 1 | Lippia carterae (Moldenke) G. L. Nesom | 1 | Lippia micromera Schauer | 1 | Lippia origanoides Kunth | 1 | Liquidambar acalycina Hung T. Chang | 2 | Liquidambar spp. | 1 | Liquidambar styraciflua L. | 16 | Liriodendron chinense (Hemsl.) Sarg. | 2 | Liriodendron spp. | 1 | Liriodendron tulipifera L. | 15 | Liriope exiliflora (L. H. Bailey) H. H. Hume | 7 | Liriope gigantea H. H. Hume | 2 | Liriope kansuensis (Batalin) C. H. Wright | 1 | Liriope minor (Maxim.) Makino | 3 | Liriope muscari (Decne.) L. H. Bailey | 23 | Liriope spicata (Thunb.) Lour. | 7 | Lithocarpus brevicaudatus (Skan) Hayata | 1 | Lithocarpus cleistocarpus (Seemen) Rehder & E. H. Wilson | 1 | Lithocarpus henryi (Seemen) Rehder & E. H. Wilson | 2 | Lithospermum molle (Michx.) Muhl. | 1 | Lithospermum spp. | 1 | Litsea aestivalis (L.) Fernald | 4 | Litsea spp. | 1 | Livistona chinensis (Jacq.) R. Br. ex Mart. | 1 | Lobelia cardinalis L. | 7 | Lobelia sessilifolia Lamb. | 1 | Lobelia siphilitica L. | 2 | Lobelia spicata Lam. | 1 | Lonicera acuminata Wall. | 1 | Lonicera alpigena L. | 2 | Lonicera altmannii Regel & Schmalh. | 1 | Lonicera caerulea L. | 5 | Lonicera caerulea L. var. edulis Turcz. ex Herder | 3 | Lonicera caucasica Pall. | 7 | Lonicera chamissoi Bunge | 3 | Lonicera chrysantha Turcz. ex Ledeb. | 1 | Lonicera ciliosa (Pursh) Poir. ex DC. | 3 | Lonicera ferdinandi Franch. | 2 | Lonicera gynochlamydea Hemsl. | 1 | Lonicera hispidula (Lindl.) Douglas ex Torr. & A. Gray | 4 | Lonicera iberica M. Bieb. | 2 | Lonicera involucrata (Richardson) Banks ex Spreng. | 5 | Lonicera involucrata (Richardson) Banks ex Spreng. var. involucrata | 1 | Lonicera involucrata (Richardson) Banks ex Spreng. var. ledebourii (Eschsch.) Jeps. | 1 | Lonicera japonica Thunb. var. chinensis (P. Watson) Baker | 2 | Lonicera korolkowii Stapf | 2 | Lonicera maackii (Rupr.) Maxim. | 5 | Lonicera morrowii A. Gray | 3 | Lonicera nitida E. H. Wilson | 5 | Lonicera periclymenum L. | 2 | Lonicera pileata Oliv. | 2 | Lonicera reticulata Raf. | 3 | Lonicera ruprechtiana Regel | 4 | Lonicera sempervirens L. | 5 | Lonicera spp. | 3 | Lonicera subsessilis Rehder | 1 | Lonicera tatarica L. | 3 | Lonicera trichosantha Bureau & Franch. var. deflexicalyx (Batalin) P. S. Hsu & H. J. Wang | 1 | Lonicera webbiana Wall. ex DC. | 1 | Lonicera ×purpusii Rehder | 1 | Lonicera xylosteum L. | 1 | Lorinseria areolata (L.) C. Presl | 4 | Loropetalum chinense (R. Br.) Oliv. | 2 | Loropetalum chinense (R. Br.) Oliv. var. chinense | 2 | Loropetalum chinense (R. Br.) Oliv. var. rubrum Yieh | 17 | Ludwigia repens J. R. Forst. | 1 | Luffa aegyptiaca Mill. | 1 | Lycianthes rantonnetii (Carrière) Bitter | 1 | Lycopodium spp. | 1 | Lycoris chinensis Traub | 1 | Lycoris incarnata Comes ex Sprenger | 2 | Lycoris longituba Y. Xu & G. J. Fan | 1 | Lycoris radiata (LʼHér.) Herb. | 8 | Lycoris radiata (LʼHér.) Herb. var. pumila Grey | 1 | Lycoris radiata (LʼHér.) Herb. var. radiata | 2 | Lycoris sanguinea Maxim. var. kiusiana T. Koyama | 2 | Lycoris spp. | 9 | Lycoris sprengeri Comes ex Baker | 1 | Lycoris squamigera Maxim. | 6 | Lycoris traubii W. Hayw. | 1 | Lycoris ×albiflora Koidz. | 4 | Lycoris ×caldwellii Traub | 2 | Lycoris ×houdyshelii Traub | 3 | Lycoris ×rosea Traub & Moldenke | 4 | Lycoris ×straminea Lindl. | 1 | Lygodium palmatum (Bernh.) Sw. | 1 | Lyonia ferruginea (Walter) Nutt. | 2 | Lyonia ligustrina (L.) DC. | 10 | Lyonia lucida (Lam.) K. Koch | 5 | Lyonia mariana (L.) D. Don | 11 | Lyonia ovalifolia (Wall.) Drude var. elliptica (Siebold & Zucc.) Hand.-Mazz. | 3 | Lysichiton americanus Hultén & H. St. John | 1 | Lysidice rhodostegia Hance | 1 | Lysimachia barystachys Bunge | 1 | Lysimachia clethroides Duby | 1 | Lysimachia congestiflora Hemsl. | 1 | Lysimachia davurica Ledeb. | 1 | Lysimachia fortunei Maxim. | 1 | Lysimachia lanceolata Walter | 1 | Lysimachia nummularia L. | 2 | Lysimachia punctata L. | 1 | Lysimachia spp. | 1 | Maackia amurensis Maxim. & Rupr. | 6 | Machilus thunbergii Siebold & Zucc. | 2 | Macleaya cordata (Willd.) R. Br. | 1 | Maclura pomifera (Raf.) C. K. Schneid. | 4 | Maclura tricuspidata Carrière | 1 | Macranthera flammea (W. Bartram) Pennell | 1 | Madia glomerata Hook. | 1 | Magnolia acuminata (L.) L. | 20 | Magnolia amoena W. C. Cheng | 1 | Magnolia ashei Weath. | 44 | Magnolia biondii Pamp. | 4 | Magnolia champaca (L.) Baill. ex Pierre | 1 | Magnolia cylindrica E. H. Wilson | 2 | Magnolia dawsoniana Rehder & E. H. Wilson | 1 | Magnolia denudata Desr. | 8 | Magnolia ernestii Figlar | 2 | Magnolia figo (Lour.) DC. | 3 | Magnolia fordiana (Oliv.) Hu | 3 | Magnolia foveolata (Merr. ex Dandy) Figlar | 1 | Magnolia fraseri Walter | 30 | Magnolia grandiflora L. | 60 | Magnolia hybr. | 79 | Magnolia kobus DC. | 5 | Magnolia laevifolia (Y. W. Law & Y. F. Wu) Noot. | 1 | Magnolia liliiflora Desr. | 2 | Magnolia macclurei (Dandy) Figlar | 1 | Magnolia macrophylla Michx. | 16 | Magnolia obovata Thunb. | 10 | Magnolia officinalis Rehder & E. H. Wilson | 3 | Magnolia officinalis Rehder & E. H. Wilson var. biloba Rehder & E. H. Wilson | 2 | Magnolia pacifica A. Vázquez | 1 | Magnolia pyramidata W. Bartram | 7 | Magnolia salicifolia (Siebold & Zucc.) Maxim. | 1 | Magnolia sieboldii K. Koch | 7 | Magnolia sieboldii K. Koch subsp. sinensis (Rehder & E. H. Wilson) Spongberg | 1 | Magnolia spp. | 4 | Magnolia sprengeri Pamp. | 4 | Magnolia stellata (Siebold & Zucc.) Maxim. | 15 | Magnolia tamaulipana A. Vázquez | 2 | Magnolia tripetala (L.) L. | 16 | Magnolia virginiana L. | 52 | Magnolia wilsonii (Finet & Gagnep.) Rehder | 1 | Magnolia ×brooklynensis Kalmb. | 3 | Magnolia ×loebneri Kache | 7 | Magnolia ×proctoriana Rehder | 1 | Magnolia ×soulangeana Soul.-Bod. | 9 | Magnolia ×wieseneri Carrière | 1 | Magnolia zenii W. C. Cheng | 2 | Mahonia aquifolium (Pursh) Nutt. | 9 | Mahonia bealei (Fortune) Carrière | 2 | Mahonia chochoco (Schltdl.) Fedde | 1 | Mahonia eurybracteata Fedde | 1 | Mahonia gracilipes (Oliv.) Fedde | 1 | Mahonia gracilis (Hartw. ex Benth.) Fedde | 1 | Mahonia hybr. | 3 | Mahonia japonica (Thunb.) DC. | 1 | Mahonia nervosa (Pursh) Nutt. | 2 | Mahonia pinnata (Lag.) Fedde | 2 | Mahonia repens (Lindl.) G. Don | 13 | Mahonia ×media C. D. Brickell | 3 | Maianthemum canadense Desf. | 2 | Maianthemum dilatatum (Alph. Wood) A. Nelson & J. F. Macbr. | 1 | Maianthemum japonicum (A. Gray) LaFrankie | 1 | Maianthemum racemosum (L.) Link subsp. racemosum | 1 | Maianthemum stellatum (L.) Link | 2 | Mallotus japonicus (L. f.) Müll. Arg. | 1 | Malus angustifolia (Aiton) Michx. | 4 | Malus baccata (L.) Borkh. | 7 | Malus coronaria (L.) Mill. | 3 | Malus domestica (Suckow) Borkh. | 4 | Malus floribunda Siebold ex Van Houtte | 1 | Malus halliana Koehne | 3 | Malus honanensis Rehder | 1 | Malus hupehensis (Pamp.) Rehder | 7 | Malus hybr. | 42 | Malus kansuensis (Batalin) C. K. Schneid. | 6 | Malus mandshurica (Maxim.) Kom. ex Skvortsov | 1 | Malus orientalis Uglitzk. | 5 | Malus prattii (Hemsl.) C. K. Schneid. | 1 | Malus prunifolia (Willd.) Borkh. | 1 | Malus sargentii Rehder | 2 | Malus sikkimensis (Wenz.) Koehne ex C. K. Schneid. | 1 | Malus spp. | 10 | Malus sylvestris (L.) Mill. | 1 | Malus toringo (Siebold) de Vriese | 8 | Malus toringoides (Rehder) Hughes | 5 | Malus transitoria (Batalin) C. K. Schneid. | 1 | Malus tschonoskii (Maxim.) C. K. Schneid. | 1 | Malus ×astracanica hort. ex Dum. Cours. | 1 | Malus yunnanensis (Franch.) C. K. Schneid. | 3 | Malva sylvestris L. | 2 | Malvaviscus arboreus Cav. | 2 | Mammillaria elongata DC. | 1 | Manihot esculenta Crantz | 2 | Marrubium persicum C. A. Mey. | 1 | Matteuccia struthiopteris (L.) Tod. | 3 | Matthiola spp. | 1 | Medeola virginiana L. | 1 | Medicago sativa L. | 2 | Meehania cordata (Nutt.) Britton | 2 | Megaskepasma erythrochlamys Lindau | 1 | Melaleuca leucadendra (L.) L. | 2 | Melia azedarach L. | 1 | Meliosma dilleniifolia (Wall. ex Wight & Arn.) Walp. | 1 | Meliosma dilleniifolia (Wall. ex Wight & Arn.) Walp. subsp. cuneifolia (Franch.) Beusekom | 1 | Meliosma myriantha Siebold & Zucc. | 1 | Meliosma pinnata (Roxb.) Maxim. subsp. barbulata (Cufod.) Beusekom var. oldhamii (Miq.) Beusekom | 2 | Meliosma veitchiorum Hemsl. | 1 | Melissa officinalis L. | 3 | Melocactus intortus (Mill.) Urb. | 1 | Menispermum dauricum DC. | 1 | Mentha aquatica L. var. citrata (Ehrh.) W. C. Werner | 2 | Mentha canadensis L. | 2 | Mentha dahurica Fisch. ex Benth. | 1 | Mentha hybr. | 5 | Mentha longifolia (L.) L. | 1 | Mentha longifolia (L.) Huds. subsp. hymalaiensis Briq. | 1 | Mentha spicata L. | 6 | Mentha spp. | 2 | Mentha suaveolens Ehrh. | 1 | Mentha ×gracilis Sole | 2 | Mentha ×piperita L. | 10 | Mentha ×suavis Guss. | 1 | Mentha ×villosa Huds. | 1 | Mentha ×villosa Huds. nothovar. alopecuroides (Hull) Briq. | 1 | Mentha ×villosonervata Opiz | 1 | Mertensia virginica (L.) Pers. ex Link | 5 | Mespilus germanica L. | 3 | Metasequoia glyptostroboides Hu & W. C. Cheng | 19 | Michauxia laevigata Vent. | 1 | Micranthes pensylvanica (L.) Haw. | 2 | Microbiota decussata Kom. | 6 | Micromeles alnifolia (Siebold & Zucc.) Koehne | 18 | Micromeles caloneura Stapf | 1 | Micromeles lanata (D. Don) Mezhenskyj | 2 | Micromeles megalocarpa (Rehder) Mezhenskyj | 1 | Micromeles pallescens (Rehder) Mezhenskyj | 1 | Mimulus ringens L. | 1 | Miscanthus floridulus (Labill.) Warb. ex K. Schum. & Lauterb. | 1 | Miscanthus sinensis Andersson | 4 | Mitchella repens L. | 11 | Mitella diphylla L. | 3 | Molinia arundinacea Schrank | 4 | Molinia caerulea (L.) Moench | 1 | Momordica balsamina L. | 1 | Momordica charantia L. | 1 | Monarda bradburiana L. C. Beck | 1 | Monarda clinopodia L. | 1 | Monarda didyma L. | 5 | Monarda fistulosa L. | 5 | Monarda hybr. | 3 | Monarda punctata L. | 1 | Monstera deliciosa Liebm. | 2 | Morella californica (Cham.) Wilbur | 2 | Morella caroliniensis (Mill.) Small | 18 | Morella cerifera (L.) Small | 20 | Morella inodora (W. Bartram) Small | 3 | Morella nana (A. Chev.) J. Herb. | 1 | Morella pensylvanica (Mirb.) Kartesz | 20 | Morella rubra Lour. | 1 | Moringa oleifera Lam. | 1 | Morus mongolica (Bureau) C. K. Schneid. | 1 | Morus rubra L. | 6 | Mucuna pruriens (L.) DC. | 1 | Muhlenbergia spp. | 1 | Mukdenia rossii (Oliv.) Koidz. | 2 | Murraya paniculata (L.) Jack | 2 | Musa acuminata Colla | 1 | Musa basjoo Siebold ex Iinuma | 3 | Musa sikkimensis Kurz | 1 | Musa spp. | 1 | Musa velutina H. Wendl. & Drude | 1 | Musa ×paradisiaca L. | 1 | Muscari armeniacum Leichtlin ex Baker | 3 | Muscari comosum (L.) Mill. | 1 | Muscari spp. | 1 | Myrica gale L. | 6 | Myrtus communis L. subsp. tarentina (L.) Nyman | 1 | Nandina domestica Thunb. | 33 | Napaea dioica L. | 1 | Narcissus bulbocodium L. | 1 | Narcissus cantabricus DC. | 1 | Narcissus hybr. | 317 | Narcissus obvallaris Salisb. | 3 | Narcissus poeticus L. subsp. poeticus | 3 | Narcissus pseudonarcissus L. | 1 | Narcissus ×intermedius Loisel. | 1 | Narcissus ×medioluteus Mill. | 1 | Narcissus ×odorus L. | 2 | Nassella tenuissima (Trin.) Barkworth | 3 | Neillia hanceana (Kuntze) S. H. Oh | 1 | Neillia incisa (Thunb.) S. H. Oh | 1 | Neillia sinensis Oliv. | 3 | Nekemias arborea (L.) J. Wen & Boggan | 5 | Nelumbo nucifera Gaertn. | 3 | Nelumbo spp. | 5 | Neoshirakia japonica (Siebold & Zucc.) Esser | 7 | Nepeta hybr. | 5 | Nepeta racemosa Lam. | 1 | Neptunia oleracea Lour. | 1 | Neviusia alabamensis A. Gray | 2 | Nicotiana rustica L. | 2 | Nigella damascena L. | 1 | Nigella spp. | 1 | Nipponanthemum nipponicum (Franch. ex Maxim.) Kitam. | 1 | Nolina texana S. Watson | 1 | Nothoscordum gracile (Aiton) Stearn | 1 | Nothotsuga longibracteata (W. C. Cheng) Hu ex C. N. Page | 2 | Nuphar japonica DC. | 1 | Nuphar lutea (L.) Sm. | 1 | Nymphaea hybr. | 7 | Nymphaea odorata Aiton | 1 | Nymphaea odorata Aiton subsp. odorata | 1 | Nyssa aquatica L. | 5 | Nyssa biflora Walter | 1 | Nyssa hybr. | 2 | Nyssa ogeche W. Bartram ex Marshall | 7 | Nyssa sinensis Oliv. | 1 | Nyssa spp. | 1 | Nyssa sylvatica Marshall | 58 | Ochna serrulata (Hochst.) Walp. | 1 | Ocimum basilicum L. | 1 | Ocimum spp. | 1 | Ocimum tenuiflorum L. | 1 | Ocimum ×africanum Lour. | 1 | Odontonema callistachyum (Schltdl. & Cham.) Kuntze | 1 | Oemleria cerasiformis (Torr. & A. Gray ex Hook. & Arn.) J. W. Landon | 1 | Oenanthe javanica (Blume) DC. | 1 | Oenothera biennis L. | 1 | Oenothera fruticosa L. | 2 | Oenothera gaura W. L. Wagner & Hoch | 1 | Oenothera lindheimeri (Engelm. & A. Gray) W. L. Wagner & Hoch | 1 | Oenothera spp. | 1 | Olea europaea L. | 4 | Onoclea sensibilis L. | 5 | Ophiopogon bodinieri H. Lév. | 1 | Ophiopogon clarkei Hook. f. | 1 | Ophiopogon intermedius D. Don | 2 | Ophiopogon jaburan (Siebold) Lodd. et al. | 1 | Ophiopogon japonicus (Thunb.) Ker Gawl. | 32 | Ophiopogon planiscapus Nakai | 6 | Ophiopogon spp. | 1 | Oplopanax elatus (Nakai) Nakai | 1 | Oplopanax horridus (Sm.) Miq. | 2 | Opuntia cochenillifera (L.) Mill. | 1 | Opuntia ellisiana Griffiths | 2 | Opuntia engelmannii Salm-Dyck ex Engelm. var. lindheimeri (Engelm.) B. D. Parfitt & Pinkava | 1 | Opuntia engelmannii Salm-Dyck ex Engelm. var. linguiformis (Griffiths) B. D. Parfitt & Pinkava | 1 | Opuntia fragilis (Nutt.) Haw. | 2 | Opuntia humifusa (Raf.) Raf. | 6 | Opuntia phaeacantha Engelm. | 1 | Opuntia polyacantha Haw. | 3 | Opuntia pottsii Salm-Dyck | 1 | Opuntia spp. | 1 | Orchidantha chinensis T. L. Wu var. chinensis | 1 | Origanum dictamnus L. | 2 | Origanum spp. | 2 | Origanum vulgare L. subsp. gracile (K. Koch) Ietsw. | 1 | Origanum vulgare L. subsp. hirtum (Link) Ietsw. | 2 | Origanum vulgare L. subsp. vulgare | 4 | Origanum ×majoricum Cambess. | 2 | Orixa japonica Thunb. | 1 | Ornithogalum umbellatum L. | 1 | Orontium aquaticum L. | 2 | Oryza sativa L. | 1 | Osmanthus armatus Diels | 1 | Osmanthus delavayi Franch. | 2 | Osmanthus fragrans Lour. | 4 | Osmanthus heterophyllus (G. Don) P. S. Green | 22 | Osmanthus ×burkwoodii (Burkwood & Skipwith) P. S. Green | 1 | Osmanthus ×fortunei Carrière | 2 | Osmorhiza claytonii (Michx.) C. B. Clarke | 1 | Osmunda japonica Thunb. | 3 | Osmunda regalis L. | 4 | Osmunda regalis L. var. spectabilis (Willd.) A. Gray | 1 | Osmundastrum cinnamomeum (L.) C. Presl | 7 | Osteomeles schweriniae C. K. Schneid. | 2 | Ostrya carpinifolia Scop. | 22 | Ostrya japonica Sarg. | 1 | Ostrya virginiana (Mill.) K. Koch | 23 | Oxalis griffithii Edgew. & Hook. f. | 2 | Oxydendrum arboreum (L.) DC. | 34 | Oxytropis campestris (L.) DC. | 1 | Oxytropis lambertii Pursh | 1 | Oxytropis sericea Nutt. | 1 | Pachypodium lamerei Drake | 1 | Pachysandra axillaris Franch. var. stylosa (Dunn) M. Cheng | 1 | Pachysandra procumbens Michx. | 4 | Pachysandra terminalis Siebold & Zucc. | 13 | Packera anonyma (Alph. Wood) W. A. Weber & Á. Löve | 1 | Packera aurea (L.) Á. Löve & D. Löve | 6 | Packera obovata (Muhl. ex Willd.) W. A. Weber & Á. Löve | 2 | Paeonia anomala L. subsp. veitchii (Lynch) D. Y. Hong & K. Y. Pan | 1 | Paeonia delavayi Franch. | 2 | Paeonia hybr. | 20 | Paeonia lactiflora Pall. | 85 | Paeonia mascula (L.) Mill. | 1 | Paeonia obovata Maxim. | 6 | Paeonia obovata Maxim. subsp. willmottiae (Stapf) D. Y. Hong & K. Y. Pan | 1 | Paeonia officinalis L. | 1 | Paeonia ostii T. Hong & J. X. Zhang | 2 | Paeonia spp. | 1 | Paeonia tenuifolia L. | 2 | Paeonia ×lemoinei Rehder | 7 | Paeonia ×suffruticosa Andrews | 34 | Paliurus hemsleyanus Rehder ex Schirarend & Olabi | 1 | Paliurus spina-christi Mill. | 4 | Panax ginseng C. A. Mey. | 1 | Panax japonicus (T. Nees) C. A. Mey. | 1 | Panax quinquefolius L. | 2 | Panax trifolius L. | 2 | Panicum spp. | 2 | Panicum virgatum L. | 13 | Papaver orientale L. | 1 | Papaver somniferum L. | 1 | Papaver spp. | 1 | Paphiopedilum delenatii Guillaumin | 1 | Paramongaia weberbaueri Velarde | 1 | Paris mandshurica Kom. | 1 | Paris polyphylla Sm. var. chinensis (Franch.) H. Hara | 1 | Parrotia persica (DC.) C. A. Mey. | 24 | Parrotia subaequalis (Hung T. Chang) R. M. Hao & H. T. Wei | 3 | Parthenium integrifolium L. | 4 | Parthenocissus henryana (Hemsl.) Diels & Gilg | 2 | Parthenocissus heptaphylla (Planch.) Britton | 1 | Parthenocissus quinquefolia (L.) Planch. | 3 | Passiflora incarnata L. | 2 | Passiflora lutea L. | 3 | Patrinia spp. | 1 | Paulownia fortunei (Seem.) Hemsl. | 1 | Paulownia tomentosa (Thunb.) Steud. | 1 | Pavonia spp. | 1 | Pedicularis canadensis L. | 1 | Peganum harmala L. | 1 | Pelargonium capitatum (L.) LʼHér. | 2 | Pelargonium crispum (P. J. Bergius) LʼHér. | 1 | Pelargonium cucullatum (L.) LʼHér. | 2 | Pelargonium denticulatum Jacq. | 1 | Pelargonium fragrans Willd. | 1 | Pelargonium graveolens LʼHér. | 1 | Pelargonium grossularioides (L.) LʼHér. | 1 | Pelargonium hirtum (Burm. f.) Jacq. | 1 | Pelargonium hybr. | 1 | Pelargonium inquinans (L.) LʼHér. | 1 | Pelargonium ionidiflorum (Eckl. & Zeyh.) Steud. | 1 | Pelargonium odoratissimum (L.) LʼHér. | 1 | Pelargonium pseudoglutinosum R. Knuth | 1 | Pelargonium radens H. E. Moore | 1 | Pelargonium spp. | 23 | Pelargonium tomentosum Jacq. | 1 | Pelecyphora missouriensis (Sweet) D. Aquino & Dan. Sánchez | 1 | Pellaea atropurpurea (L.) Link | 2 | Peltandra virginica (L.) Raf. ex Schott | 2 | Penstemon bradburyi Pursh | 2 | Penstemon canescens (Britton) Britton | 1 | Penstemon digitalis Nutt. ex Sims | 5 | Penstemon hirsutus (L.) Willd. | 1 | Penstemon hybr. | 1 | Penstemon laevigatus Aiton | 1 | Penstemon smallii A. Heller | 1 | Penstemon tenuiflorus Pennell | 1 | Penstemon tenuis Small | 1 | Penthorum sedoides L. | 2 | Perilla frutescens (L.) Britton | 2 | Periploca graeca L. | 1 | Perovskia atriplicifolia Benth. | 2 | Perovskia hybr. | 5 | Persea americana Mill. | 1 | Persea borbonia (L.) Spreng. | 4 | Persea humilis Nash | 3 | Persea palustris (Raf.) Sarg. | 5 | Persea spp. | 1 | Persicaria microcephala (D. Don) H. Gross | 2 | Persicaria odorata (Lour.) Soják | 1 | Persicaria virginiana (L.) Gaertn. | 1 | Petasites japonicus (Siebold & Zucc.) Maxim. | 2 | Petasites spp. | 1 | Petroselinum crispum (Mill.) Fuss var. neapolitanum Danert, nom. inval. | 1 | Petteria ramentacea (Sieber) C. Presl | 4 | Petunia hybr. | 1 | Peucedanum formosanum Hayata | 1 | Phacelia bipinnatifida Michx. | 1 | Phedimus aizoon (L.) ʼt Hart | 1 | Phedimus hybridus (L.) ʼt Hart | 1 | Phedimus kamtschaticus (Fisch.) ʼt Hart | 3 | Phedimus selskianus (Regel & Maack) ʼt Hart | 1 | Phedimus spurius (M. Bieb.) ʼt Hart | 4 | Phedimus takesimensis (Nakai) ʼt Hart | 1 | Phegopteris connectilis (Michx.) Watt | 2 | Phegopteris hexagonoptera (Michx.) Fée | 4 | Phellodendron amurense Rupr. | 3 | Phemeranthus parviflorus (Nutt.) Kiger | 1 | Phemeranthus teretifolius (Pursh) Raf. | 1 | Philadelphus caucasicus Koehne | 5 | Philadelphus hirsutus Nutt. | 4 | Philadelphus incanus Koehne | 1 | Philadelphus inodorus L. | 2 | Philadelphus lewisii Pursh | 10 | Philadelphus microphyllus A. Gray | 2 | Philadelphus pekinensis Rupr. | 6 | Philadelphus pubescens Loisel. | 1 | Philadelphus schrenkii Rupr. | 8 | Philadelphus schrenkii Rupr. var. jackii Koehne | 3 | Philadelphus sericanthus Koehne | 1 | Philadelphus spp. | 1 | Philadelphus subcanus Koehne | 1 | Philadelphus tenuifolius Maxim. & Rupr. | 3 | Philadelphus zhejiangensis S. M. Hwang | 1 | Phlomis spp. | 1 | Phlomis tuberosa L. | 2 | Phlox carolina L. | 1 | Phlox divaricata L. | 10 | Phlox glaberrima L. | 2 | Phlox ovata L. | 1 | Phlox paniculata L. | 17 | Phlox pilosa L. | 1 | Phlox stolonifera Sims | 10 | Phlox subulata L. | 7 | Phoebe faberi (Hemsl.) Chun | 1 | Phoenix dactylifera L. | 1 | Phormium tenax J. R. Forst. & G. Forst. | 1 | Photinia davidiana (Decne.) Cardot | 9 | Photinia glabra (Thunb.) Franch. & Sav. | 1 | Photinia niitakayamensis Hayata | 1 | Photinia serratifolia (Desf.) Kalkman | 1 | Phyla dulcis (Trevir.) Moldenke | 1 | Phyllodoce empetriformis (Sm.) D. Don | 1 | Phyllostachys bambusoides Siebold & Zucc. | 1 | Phyllostachys bissetii McClure | 1 | Phyllostachys edulis (Carrière) J. Houz. | 2 | Phyllostachys heteroclada Oliv. | 1 | Phyllostachys nigra (Lodd. ex Lindl.) Munro | 3 | Phyllostachys nuda McClure | 1 | Phyllostachys sulphurea (Carrière) Rivière & C. Rivière var. viridis R. A. Young | 1 | Physocarpus monogynus (Torr.) J. M. Coult. | 1 | Physocarpus opulifolius (L.) Maxim. | 12 | Physostegia virginiana (L.) Benth. | 6 | Picea abies (L.) H. Karst. | 75 | Picea asperata Mast. | 4 | Picea asperata Mast. var. asperata | 1 | Picea asperata Mast. var. heterolepis (Rehder & E. H. Wilson) W. C. Cheng ex Rehder | 1 | Picea breweriana S. Watson | 1 | Picea crassifolia Kom. | 1 | Picea engelmannii Engelm. | 2 | Picea glauca (Moench) Voss | 17 | Picea glehnii (F. Schmidt) Mast. | 8 | Picea jezoensis (Siebold & Zucc.) Carrière | 8 | Picea jezoensis (Siebold & Zucc.) Carrière subsp. jezoensis var. komarovii (V. N. Vassil.) W. C. Cheng & L. K. Fu | 2 | Picea koraiensis Nakai | 3 | Picea likiangensis (Franch.) E. Pritz. | 1 | Picea likiangensis (Franch.) E. Pritz. var. montigena (Mast.) W. C. Cheng | 1 | Picea mariana (Mill.) Britton et al. | 6 | Picea maximowiczii Regel ex Carrière | 3 | Picea meyeri Rehder & E. H. Wilson | 6 | Picea omorika (Pančić) Purk. | 5 | Picea orientalis (L.) Link | 31 | Picea polita (Siebold & Zucc.) Carrière | 1 | Picea pungens Engelm. | 31 | Picea purpurea Mast. | 1 | Picea rubens Sarg. | 1 | Picea schrenkiana Fisch. & C. A. Mey. | 2 | Picea sitchensis (Bong.) Carrière | 1 | Picea smithiana (Wall.) Boiss. | 1 | Picea spp. | 1 | Picea wilsonii Mast. | 4 | Picea ×mariorika Boom | 1 | Picrasma quassioides (D. Don) Benn. | 1 | Pieris floribunda (Pursh) Benth. & Hook. f. | 6 | Pieris formosa (Wall.) D. Don | 2 | Pieris japonica (Thunb.) D. Don ex G. Don | 34 | Pieris phillyreifolia (Hook.) DC. | 4 | Pieris spp. | 1 | Pinckneya bracteata (W. Bartram) Raf. | 8 | Pinus albicaulis Engelm. | 27 | Pinus aristata Engelm. | 1 | Pinus armandii Franch. | 7 | Pinus attenuata Lemmon | 3 | Pinus brutia Ten. var. eldarica (Medw.) Silba | 2 | Pinus bungeana Zucc. ex Endl. | 12 | Pinus cembra L. | 4 | Pinus cembroides Zucc. | 3 | Pinus contorta Douglas ex Loudon | 3 | Pinus contorta Douglas ex Loudon var. contorta | 1 | Pinus contorta Douglas ex Loudon var. latifolia Engelm. ex S. Watson | 1 | Pinus contorta Douglas ex Loudon var. murrayana (Balf.) Engelm. | 1 | Pinus coulteri D. Don | 3 | Pinus densiflora Siebold & Zucc. | 10 | Pinus echinata Mill. | 5 | Pinus edulis Engelm. | 4 | Pinus fenzeliana Hand.-Mazz. var. dabeshanensis (W. C. Cheng & Y. W. Law) L. K. Fu & Nan Li | 1 | Pinus flexilis E. James | 26 | Pinus gerardiana Wall. ex D. Don | 1 | Pinus glabra Walter | 1 | Pinus halepensis Mill. | 1 | Pinus heldreichii Christ | 12 | Pinus jeffreyi A. Murray bis et al. | 1 | Pinus koraiensis Siebold & Zucc. | 51 | Pinus lambertiana Douglas | 8 | Pinus massoniana Lamb. | 2 | Pinus monophylla Torr. & Frém. | 1 | Pinus monticola Douglas ex D. Don | 4 | Pinus mugo Turra | 13 | Pinus muricata D. Don | 2 | Pinus nigra J. F. Arnold | 8 | Pinus nigra J. F. Arnold subsp. laricio Maire | 1 | Pinus nigra J. F. Arnold subsp. nigra | 1 | Pinus palustris Mill. | 6 | Pinus parviflora Siebold & Zucc. | 19 | Pinus parviflora Siebold & Zucc. var. pentaphylla (Mayr) A. Henry | 1 | Pinus peuce Griseb. | 1 | Pinus ponderosa P. Lawson & C. Lawson | 3 | Pinus ponderosa P. Lawson & C. Lawson subsp. scopulorum (Engelm.) A. E. Murray | 1 | Pinus pumila (Pall.) Regel | 4 | Pinus pungens Lamb. | 7 | Pinus resinosa Aiton | 3 | Pinus rigida Mill. | 6 | Pinus sabiniana Douglas | 4 | Pinus serotina Michx. | 2 | Pinus spp. | 4 | Pinus strobiformis Engelm. | 15 | Pinus strobus L. | 40 | Pinus sylvestris L. | 14 | Pinus sylvestris L. var. hamata Steven | 4 | Pinus sylvestris L. var. mongolica Litv. | 1 | Pinus sylvestris L. var. sylvestriformis (Taken.) W. C. Cheng & C. D. Chu | 1 | Pinus tabuliformis Carrière | 3 | Pinus tabuliformis Carrière var. henryi (Mast.) C. T. Kuan | 1 | Pinus taeda L. | 10 | Pinus taiwanensis Hayata | 2 | Pinus thunbergii Parl. | 32 | Pinus virginiana Mill. | 15 | Pinus wallichiana A. B. Jacks. | 6 | Piper auritum Kunth | 1 | Piper betle L. | 1 | Piper kadsura (Choisy) Ohwi | 1 | Piper nigrum L. | 1 | Piptanthus nepalensis (Hook.) D. Don | 2 | Piptochaetium avenaceum (L.) Parodi | 1 | Pistacia atlantica Desf. subsp. mutica (Fisch. & C. A. Mey.) Rech. f. | 2 | Pistacia chinensis Bunge | 9 | Pittosporum brevicalyx (Oliv.) Gagnep. | 1 | Pittosporum illicioides Makino | 2 | Pittosporum rehderianum Gowda | 1 | Pittosporum spp. | 2 | Pittosporum subulisepalum Hu & F. T. Wang | 1 | Pittosporum tenuifolium Gaertn. | 1 | Pittosporum tobira (Thunb.) W. T. Aiton | 3 | Pittosporum truncatum E. Pritz. | 1 | Pityopsis graminifolia (Michx.) Nutt. | 2 | Plantago major L. | 1 | Platanus mexicana Moric. | 2 | Platanus occidentalis L. | 10 | Platanus orientalis L. | 5 | Platanus wrightii S. Watson | 1 | Platanus ×hispanica Mill. ex Münchh. | 10 | Platycarya strobilacea Siebold & Zucc. | 4 | Platycladus orientalis (L.) Franco | 18 | Platycodon grandiflorus (Jacq.) A. DC. | 5 | Platyosprion platycarpum (Maxim.) Maxim. | 1 | Plectranthus forsteri Benth. | 1 | Pleioblastus distichus (Mitford) Nakai | 2 | Pleioblastus viridistriatus (Regel) Makino | 1 | Plinia cauliflora (Mart.) Kausel | 1 | Plumbago auriculata Lam. | 1 | Plumbago europaea L. | 1 | Plumeria hybr. | 1 | Plumeria obtusa L. | 1 | Podocarpus macrophyllus (Thunb.) Sweet | 4 | Podocarpus macrophyllus (Thunb.) Sweet var. maki Siebold & Zucc. | 1 | Podocarpus nakaii Hayata | 1 | Podocarpus nivalis Hook. | 1 | Podocarpus spp. | 3 | Podophyllum delavayi Franch. | 2 | Podophyllum hexandrum Royle | 4 | Podophyllum peltatum L. | 2 | Podophyllum pleianthum Hance | 1 | Podophyllum versipelle Hance subsp. versipelle | 1 | Pogostemon heyneanus Benth. | 1 | Polemonium reptans L. | 3 | Poliomintha bustamenta B. L. Turner | 2 | Poliothyrsis sinensis Oliv. | 3 | Pollia japonica Thunb. | 2 | Polygonatum biflorum (Walter) Elliott | 7 | Polygonatum cirrhifolium (Wall.) Royle | 2 | Polygonatum cyrtonema Hua | 1 | Polygonatum falcatum A. Gray | 3 | Polygonatum humile Fisch. ex Maxim. | 3 | Polygonatum infundiflorum Y. S. Kim et al. | 1 | Polygonatum involucratum (Franch. & Sav.) Maxim. | 2 | Polygonatum kingianum Collett & Hemsl. | 2 | Polygonatum macropodum Turcz. | 1 | Polygonatum multiflorum (L.) All. | 1 | Polygonatum nodosum Hua | 1 | Polygonatum odoratum (Mill.) Druce | 10 | Polygonatum odoratum (Mill.) Druce var. pluriflorum (Miq.) Ohwi | 4 | Polygonatum pubescens (Willd.) Pursh | 1 | Polygonatum sibiricum Redouté | 1 | Polygonatum spp. | 6 | Polygonatum stenanthum Nakai | 2 | Polygonatum ×hybridum Brügger | 1 | Polygonatum zanlanscianense Pamp. | 1 | Polypodium polypodioides (L.) Watt | 1 | Polypodium virginianum L. | 5 | Polypodium vulgare L. | 1 | Polystichum acrostichoides (Michx.) Schott | 24 | Polystichum braunii (Spenn.) Fée | 3 | Polystichum makinoi (Tagawa) Tagawa | 1 | Polystichum polyblepharum (Roem. ex Kunze) C. Presl | 3 | Polystichum retrorsopaleaceum (Kodama) Tagawa | 2 | Polystichum setiferum (Forssk.) Woyn. | 1 | Polystichum tripteron (Kunze) C. Presl | 1 | Pontederia cordata L. | 4 | Populus alba L. | 1 | Populus balsamifera L. | 1 | Populus deltoides W. Bartram ex Marshall | 4 | Populus deltoides W. Bartram ex Marshall subsp. monilifera (Aiton) Eckenw. | 2 | Populus fremontii S. Watson | 3 | Populus heterophylla L. | 1 | Populus hybr. | 2 | Populus koreana Rehder | 1 | Populus maximowiczii A. Henry | 1 | Populus nigra L. | 3 | Populus pseudosimonii Kitag. | 1 | Populus purdomii Rehder | 1 | Populus szechuanica C. K. Schneid. | 1 | Populus szechuanica C. K. Schneid. var. tibetica C. K. Schneid. | 1 | Populus tomentosa Carrière | 1 | Populus tremula L. | 1 | Populus tremuloides Michx. | 1 | Populus ×canescens (Aiton) Sm. | 1 | Potentilla tridentata Aiton | 2 | Pourthiaea amphidoxa (C. K. Schneid.) Stapf | 2 | Pourthiaea villosa (Thunb.) Decne. | 8 | Premna microphylla Turcz. | 1 | Primula kisoana Miq. | 1 | Primula meadia (L.) A. R. Mast & Reveal | 2 | Primula pauciflora (Greene) A. R. Mast & Reveal | 2 | Primula sieboldii É. Morren | 8 | Primula vulgaris Huds. | 2 | Primula vulgaris Huds. subsp. rubra (Sm.) Arcang. | 4 | Prinsepia sinensis (Oliv.) Oliv. ex Bean | 5 | Pritchardia spp. | 1 | Proboscidea parviflora (Wooton) Wooton & Standl. | 1 | Prosartes lanuginosa (Michx.) D. Don | 1 | Proserpinaca palustris L. | 1 | Prunella vulgaris L. | 1 | Prunus americana Marshall | 3 | Prunus andersonii A. Gray | 4 | Prunus buergeriana Miq. | 1 | Prunus campanulata Maxim. | 6 | Prunus cerasifera Ehrh. | 1 | Prunus cerasifera Ehrh. var. divaricata (Ledeb.) L. H. Bailey | 2 | Prunus cerasoides D. Don | 1 | Prunus conradinae Koehne | 2 | Prunus cyclamina Koehne | 1 | Prunus davidiana (Carrière) N. E. Br. | 1 | Prunus dulcis (Mill.) D. A. Webb | 2 | Prunus emarginata (Douglas) Eaton | 10 | Prunus fasciculata (Torr.) A. Gray | 2 | Prunus glandulosa Thunb. | 2 | Prunus grayana Maxim. | 2 | Prunus hortulana L. H. Bailey | 1 | Prunus hybr. | 72 | Prunus incisa Thunb. | 12 | Prunus incisa Thunb. f. yamadei (Makino) Ohwi | 1 | Prunus itosakura Siebold | 5 | Prunus jamasakura Siebold ex Koidz. | 1 | Prunus japonica Thunb. | 2 | Prunus laurocerasus L. | 7 | Prunus leveilleana Koehne | 4 | Prunus maackii Rupr. | 6 | Prunus maritima Marshall | 1 | Prunus maximowiczii Rupr. | 2 | Prunus mexicana S. Watson | 3 | Prunus mume Siebold & Zucc. | 28 | Prunus nipponica Matsum. | 13 | Prunus nipponica Matsum. var. kurilensis (Miyabe) E. H. Wilson | 9 | Prunus obtusata Koehne | 1 | Prunus padus L. | 6 | Prunus padus L. var. borealis A. Blytt | 1 | Prunus padus L. var. pubescens Regel & Tiling | 1 | Prunus pensylvanica L. f. | 1 | Prunus pumila L. var. depressa (Pursh) Bean | 1 | Prunus salicina Lindl. | 2 | Prunus salicina Lindl. var. mandshurica (Skvortsov) Skvortsov & A. I. Baranov | 1 | Prunus sargentii Rehder | 66 | Prunus serotina Ehrh. | 2 | Prunus serotina Ehrh. var. serotina | 1 | Prunus setulosa Batalin | 1 | Prunus speciosa (Koidz.) Nakai | 1 | Prunus spinosa L. | 1 | Prunus spp. | 9 | Prunus takesimensis Nakai | 16 | Prunus umbellata Elliott | 1 | Prunus virginiana L. | 11 | Prunus virginiana L. var. demissa (Nutt.) Torr. | 5 | Prunus ×incam Ingram ex R. T. Olsen & Whittem. | 6 | Prunus ×kanzakura Makino | 1 | Prunus ×sieboldii (Carrière) Wittm. | 2 | Prunus ×subhirtella Miq. | 4 | Prunus ×yedoensis Matsum. | 34 | Pseudocydonia sinensis (Thouin) C. K. Schneid. | 6 | Pseudolarix amabilis (J. Nelson) Rehder | 3 | Pseudotsuga menziesii (Mirb.) Franco | 8 | Pseudotsuga menziesii (Mirb.) Franco var. menziesii | 1 | Ptelea trifoliata L. | 8 | Pteridium aquilinum (L.) Kuhn | 3 | Pteris cretica L. | 1 | Pteris spp. | 1 | Pterocarya fraxinifolia (Lam.) Spach | 4 | Pterocarya hupehensis Skan | 3 | Pterocarya macroptera Batalin | 1 | Pterocarya rhoifolia Siebold & Zucc. | 1 | Pterocarya stenoptera C. DC. | 1 | Pteroceltis tatarinowii Maxim. | 3 | Pterostyrax corymbosus Siebold & Zucc. | 5 | Pterostyrax hispidus Siebold & Zucc. | 4 | Pterostyrax psilophyllus Diels ex Perkins | 3 | Punica granatum L. | 8 | Puschkinia scilloides Adams | 2 | Pycnanthemum flexuosum (Walter) Britton et al. | 1 | Pycnanthemum incanum Michx. | 1 | Pycnanthemum muticum (Michx.) Pers. | 4 | Pycnanthemum spp. | 4 | Pycnanthemum virginianum (L.) T. Durand & B. D. Jacks. ex B. L. Rob. & Fernald | 1 | Pyracantha angustifolia (Franch.) C. K. Schneid. | 1 | Pyracantha atalantioides (Hance) Stapf | 1 | Pyracantha coccinea M. Roem. | 12 | Pyracantha crenatoserrata (Hance) Rehder | 3 | Pyracantha crenulata (D. Don) M. Roem. | 4 | Pyracantha hybr. | 3 | Pyracantha spp. | 4 | Pyrularia pubera Michx. | 4 | Pyrus betulifolia Bunge | 1 | Pyrus communis L. subsp. caucasica (Fed.) Browicz | 1 | Pyrus fauriei C. K. Schneid. | 1 | Pyrus salicifolia Pall. | 3 | Pyrus ×calleryana Decne. | 1 | Quercus acerifolia (E. J. Palmer) Stoynoff & W. J. Hess ex R. J. Jensen | 25 | Quercus acuta Thunb. | 7 | Quercus acutissima Carruth. | 7 | Quercus agrifolia Née | 3 | Quercus alba L. | 23 | Quercus aliena Blume | 2 | Quercus aliena Blume var. acutiserrata Maxim. ex Wenz. | 5 | Quercus arkansana Sarg. | 7 | Quercus austrina Small | 4 | Quercus baloot Griff. | 1 | Quercus baronii Skan | 1 | Quercus bicolor Willd. | 10 | Quercus boyntonii Beadle | 35 | Quercus buckleyi Nixon & Dorr | 2 | Quercus canbyi Trel. | 2 | Quercus castaneifolia C. A. Mey. | 4 | Quercus cerris L. | 2 | Quercus chapmanii Sarg. | 1 | Quercus coccinea Münchh. | 13 | Quercus dalechampii Ten. | 1 | Quercus dentata Thunb. | 5 | Quercus durandii Buckley | 1 | Quercus durandii Buckley var. breviloba (Torr.) E. J. Palmer | 3 | Quercus durandii Buckley var. durandii | 2 | Quercus ellipsoidalis E. J. Hill | 2 | Quercus engleriana Seemen | 1 | Quercus falcata Michx. | 16 | Quercus frainetto Ten. | 2 | Quercus fusiformis Small | 2 | Quercus geminata Small | 2 | Quercus georgiana M. A. Curtis | 3 | Quercus gilva Blume | 1 | Quercus glauca Thunb. | 5 | Quercus hartwissiana Steven | 3 | Quercus hemisphaerica W. Bartram ex Willd. | 4 | Quercus hybr. | 3 | Quercus ilicifolia Wangenh. | 3 | Quercus imbricaria Michx. | 7 | Quercus kelloggii Newb. | 1 | Quercus laevis Walter | 3 | Quercus laurifolia Michx. | 2 | Quercus lyrata Walter | 10 | Quercus macranthera Fisch. & C. A. Mey. ex Hohen. | 7 | Quercus macrocarpa Michx. | 8 | Quercus margarettiae (Ashe) Small | 4 | Quercus marilandica Münchh. | 8 | Quercus marilandica Münchh. var. ashei Sudw. | 3 | Quercus michauxii Nutt. | 11 | Quercus mongolica Fisch. ex Ledeb. | 7 | Quercus montana Willd. | 13 | Quercus muehlenbergii Engelm. | 18 | Quercus nigra L. | 7 | Quercus oglethorpensis W. H. Duncan | 4 | Quercus pagoda Raf. | 3 | Quercus palustris Münchh. | 9 | Quercus petraea (Matt.) Liebl. | 2 | Quercus petraea (Matt.) Liebl. subsp. iberica (Steven ex M. Bieb.) Krassiln. | 11 | Quercus phellos L. | 14 | Quercus phillyraeoides A. Gray | 2 | Quercus pubescens Willd. | 1 | Quercus robur L. | 3 | Quercus robur L. subsp. pedunculiflora (K. Koch) Menitsky | 6 | Quercus rubra L. | 17 | Quercus salicina Blume | 2 | Quercus serrata Murray | 11 | Quercus shumardii Buckley | 4 | Quercus spp. | 2 | Quercus stellata Wangenh. | 6 | Quercus suber L. | 1 | Quercus texana Buckley | 2 | Quercus variabilis Blume | 10 | Quercus velutina Lam. | 8 | Quercus virginiana Mill. | 11 | Quercus wislizeni A. DC. | 1 | Quercus wutaishanica Mayr | 1 | Quercus ×bimundorum E. J. Palmer | 3 | Quercus ×macdanielii T. L. Green & W. J. Hess | 1 | Quercus ×major Nakai | 1 | Quercus ×saulii C. K. Schneid. | 3 | Quercus ×warei T. L. Green & W. J. Hess | 2 | Ranunculus japonicus Thunb. | 1 | Ratibida columnifera (Nutt.) Wooton & Standl. | 1 | Ratibida pinnata (Vent.) Barnhart | 1 | Rauvolfia serpentina (L.) Benth. ex Kurz | 1 | Reevesia pubescens Mast. | 1 | Rehderodendron macrocarpum Hu | 1 | Reineckea carnea (Andrews) Kunth | 3 | Rhamnella franguloides (Maxim.) Weberb. | 2 | Rhamnus alpina L. subsp. fallax (Boiss.) Maire & Petitm. | 2 | Rhamnus cathartica L. | 6 | Rhamnus davurica Pall. var. nipponica Makino | 1 | Rhamnus erythroxyloides Hoffmanns. | 3 | Rhamnus ilicifolia Kellogg | 5 | Rhamnus imeretina J. R. Booth ex G. Kirchn. | 1 | Rhamnus japonica Maxim. | 1 | Rhamnus koraiensis C. K. Schneid. | 2 | Rhamnus prinoides LʼHér. | 1 | Rhamnus spp. | 1 | Rhamnus ussuriensis J. J. Vassil. | 1 | Rhamnus utilis Decne. | 1 | Rhamnus virgata Roxb. | 1 | Rhamnus yoshinoi Makino | 1 | Rhaphiolepis umbellata (Thunb.) Makino | 6 | Rhaphiolepis ×delacourii André | 1 | Rhapidophyllum hystrix (Pursh) H. Wendl. & Drude | 3 | Rhapis excelsa (Thunb.) A. Henry ex Rehder | 1 | Rhaponticum uniflorum (L.) DC. | 2 | Rhexia spp. | 2 | Rhizophora mangle L. | 1 | Rhododendron alabamense Rehder | 11 | Rhododendron albrechtii Maxim. | 2 | Rhododendron arborescens (Pursh) Torr. | 13 | Rhododendron argyrophyllum Franch. subsp. hypoglaucum (Hemsl.) D. F. Chamb. | 2 | Rhododendron atlanticum (Ashe) Rehder | 17 | Rhododendron aureum Georgi | 3 | Rhododendron austrinum (Small) Rehder | 38 | Rhododendron brachycarpum D. Don ex G. Don | 6 | Rhododendron calendulaceum (Michx.) Torr. | 20 | Rhododendron canadense (L.) Torr. | 3 | Rhododendron canescens (Michx.) Sweet | 21 | Rhododendron capitatum Maxim. | 1 | Rhododendron catawbiense Michx. | 6 | Rhododendron caucasicum Pall. | 14 | Rhododendron colemanii R. F. Mill. | 3 | Rhododendron columbianum (Piper) Harmaja | 1 | Rhododendron cumberlandense E. L. Braun | 6 | Rhododendron dauricum L. | 5 | Rhododendron degronianum Carrière | 2 | Rhododendron eriocarpum (Hayata) Nakai | 5 | Rhododendron ferrugineum L. | 2 | Rhododendron flammeum (Michx.) Sarg. | 16 | Rhododendron fortunei Lindl. | 9 | Rhododendron fortunei Lindl. subsp. discolor (Franch.) D. F. Chamb. | 1 | Rhododendron groenlandicum (Oeder) Kron & Judd | 2 | Rhododendron hybr. | 1683 | Rhododendron hypoleucum (Kom.) Harmaja | 2 | Rhododendron impeditum Balf. f. & W. W. Sm. | 1 | Rhododendron indicum (L.) Sweet | 10 | Rhododendron kaempferi Planch. | 5 | Rhododendron keiskei Miq. | 2 | Rhododendron kiusianum Makino | 6 | Rhododendron lapponicum (L.) Wahlenb. | 2 | Rhododendron ledebourii Pojark. | 1 | Rhododendron luteum Sweet | 21 | Rhododendron macrophyllum D. Don ex G. Don | 3 | Rhododendron mariesii Hemsl. & E. H. Wilson | 4 | Rhododendron maximum L. | 34 | Rhododendron micranthum Turcz. | 4 | Rhododendron minus Michx. | 8 | Rhododendron minus Michx. var. chapmanii (Alph. Wood) W. H. Duncan & Pullen | 1 | Rhododendron minus Michx. var. minus | 8 | Rhododendron molle (Blume) G. Don | 1 | Rhododendron molle (Blume) G. Don subsp. japonicum (A. Gray) Kron | 1 | Rhododendron mucronatum (Blume) G. Don var. ripense (Makino) E. H. Wilson | 2 | Rhododendron mucronulatum Turcz. | 24 | Rhododendron mucronulatum Turcz. var. ciliatum Nakai | 1 | Rhododendron mucronulatum Turcz. var. lucidum Nakai | 1 | Rhododendron nakaharae Hayata | 3 | Rhododendron occidentale (Torr. & A. Gray) A. Gray | 1 | Rhododendron oldhamii Maxim. | 1 | Rhododendron oreodoxa Franch. var. fargesii (Franch.) D. F. Chamb. | 1 | Rhododendron ovatum (Lindl.) Maxim. | 2 | Rhododendron pentaphyllum Maxim. | 1 | Rhododendron periclymenoides (Michx.) Shinners | 13 | Rhododendron pilosum (Michx.) Craven | 2 | Rhododendron ponticum L. | 6 | Rhododendron prinophyllum (Small) Millais | 15 | Rhododendron prunifolium (Small) Millais | 12 | Rhododendron przewalskii Maxim. | 1 | Rhododendron purdomii Rehder & E. H. Wilson | 1 | Rhododendron reticulatum D. Don ex G. Don | 2 | Rhododendron rufum Batalin | 1 | Rhododendron schlippenbachii Maxim. | 15 | Rhododendron semibarbatum Maxim. | 1 | Rhododendron serpyllifolium (A. Gray) Miq. | 1 | Rhododendron serrulatum (Small) Millais | 1 | Rhododendron sichotense Pojark. | 3 | Rhododendron simsii Planch. | 5 | Rhododendron smirnowii Trautv. | 2 | Rhododendron spp. | 31 | Rhododendron stenopetalum (Hogg) Mabb. | 1 | Rhododendron subarcticum Harmaja | 2 | Rhododendron tashiroi Maxim. | 1 | Rhododendron tomentosum Harmaja | 1 | Rhododendron tschonoskii Maxim. | 1 | Rhododendron ungernii Trautv. | 2 | Rhododendron vaseyi A. Gray | 13 | Rhododendron vernicosum Franch. | 1 | Rhododendron viscosum (L.) Torr. | 38 | Rhododendron wadanum Makino | 1 | Rhododendron wasonii Hemsl. & E. H. Wilson | 1 | Rhododendron weyrichii Maxim. | 4 | Rhododendron ×kosterianum C. K. Schneid. | 1 | Rhododendron yedoense Maxim. | 2 | Rhododendron yedoense Maxim. var. poukhanense (H. Lév.) Nakai | 6 | Rhodophiala bifida (Herb.) Traub | 2 | Rhodophiala spp. | 1 | Rhodotypos scandens (Thunb.) Makino | 2 | Rhoiptelea chiliantha Diels & Hand.-Mazz. | 1 | Rhus aromatica Aiton | 8 | Rhus chinensis Mill. | 3 | Rhus copallinum L. | 5 | Rhus coriaria L. | 4 | Rhus glabra L. | 5 | Rhus potaninii Maxim. | 1 | Rhus punjabensis J. L. Stewart var. sinica (Diels) Rehder & E. H. Wilson | 2 | Rhus typhina L. | 4 | Rhus virens Lindh. ex A. Gray | 1 | Rhus ×pulvinata Greene | 2 | Rhynchanthus beesianus W. W. Sm. | 1 | Rhynchospora colorata (L.) H. Pfeiff. | 2 | Rhynchospora spp. | 1 | Ribes cereum Douglas | 1 | Ricinus communis L. | 1 | Robinia hispida L. | 1 | Robinia pseudoacacia L. | 5 | Robinia viscosa Vent. var. hartwigii (Koehne) Ashe | 1 | Rodgersia aesculifolia Batalin | 1 | Rodgersia podophylla A. Gray | 3 | Rohdea japonica (Thunb.) Roth | 12 | Rosa acicularis Lindl. | 7 | Rosa acicularis Lindl. subsp. acicularis | 1 | Rosa acicularis Lindl. subsp. sayi (Schwein.) W. H. Lewis | 3 | Rosa agrestis Savi | 1 | Rosa amblyotis C. A. Mey. | 1 | Rosa arkansana Porter | 7 | Rosa banksiae W. T. Aiton var. banksiae | 1 | Rosa banksiae W. T. Aiton var. normalis Regel | 1 | Rosa beggeriana Schrenk ex Fisch. & C. A. Mey. | 1 | Rosa bella Rehder & E. H. Wilson | 1 | Rosa blanda Aiton | 5 | Rosa bracteata J. C. Wendl. | 1 | Rosa brunonii Lindl. | 1 | Rosa californica Cham. & Schltdl. | 4 | Rosa canina L. | 23 | Rosa carolina L. | 12 | Rosa carolina L. subsp. carolina | 1 | Rosa chinensis Jacq. | 2 | Rosa coriifolia Fr. | 1 | Rosa davidii Crép. | 1 | Rosa davurica Pall. | 4 | Rosa dumalis Bechst. | 1 | Rosa foliolosa Nutt. ex Torr. & A. Gray | 1 | Rosa gallica L. | 2 | Rosa glomerata Rehder & E. H. Wilson | 1 | Rosa graciliflora Rehder & E. H. Wilson | 1 | Rosa gymnocarpa Nutt. | 2 | Rosa helenae Rehder & E. H. Wilson | 1 | Rosa hemisphaerica Herrm. | 1 | Rosa henryi Boulenger | 2 | Rosa hybr. | 134 | Rosa kazarjanii Sosn. | 1 | Rosa laxa Retz. | 2 | Rosa longicuspis Bertol. | 1 | Rosa lucieae Franch. & Rochebr. ex Crép. | 2 | Rosa lucieae Franch. & Rochebr. ex Crép. var. fujisanensis Makino | 1 | Rosa lucieae Franch. & Rochebr. ex Crép. var. lucieae | 1 | Rosa macrophylla Lindl. | 1 | Rosa marginata Wallr. | 2 | Rosa maximowicziana Regel | 1 | Rosa micrantha Borrer ex Sm. | 1 | Rosa minutifolia Engelm. | 1 | Rosa moschata Herrm. | 2 | Rosa moyesii Hemsl. & E. H. Wilson | 1 | Rosa multiflora Thunb. | 3 | Rosa multiflora Thunb. var. cathayensis Rehder & E. H. Wilson | 1 | Rosa nitidula Besser | 1 | Rosa nutkana C. Presl | 5 | Rosa nutkana C. Presl var. hispida Fernald | 2 | Rosa oxyodon Boiss. | 2 | Rosa palustris Marshall | 25 | Rosa pendulina L. | 4 | Rosa pisocarpa A. Gray | 3 | Rosa platyacantha Schrenk | 1 | Rosa praelucens Bijh. | 1 | Rosa pulverulenta M. Bieb. | 2 | Rosa roxburghii Tratt. | 3 | Rosa rubiginosa L. | 2 | Rosa rubus H. Lév. & Vaniot | 2 | Rosa rugosa Thunb. | 17 | Rosa schrenkiana Crép. | 1 | Rosa sempervirens L. | 2 | Rosa sericea Lindl. | 1 | Rosa sericea Lindl. subsp. omeiensis (Rolfe) A. V. Roberts | 2 | Rosa sertata Rolfe | 2 | Rosa setigera Michx. | 9 | Rosa setipoda Hemsl. & E. H. Wilson | 3 | Rosa sherardii Davies | 1 | Rosa sikangensis T. T. Yu & T. C. Ku | 1 | Rosa spinosissima L. | 12 | Rosa spp. | 35 | Rosa sweginzowii Koehne | 1 | Rosa turcica Rouy | 1 | Rosa virginiana Mill. | 4 | Rosa willmottiae Hemsl. | 1 | Rosa woodsii Lindl. | 68 | Rosa woodsii Lindl. var. ultramontana (S. Watson) Jeps. | 8 | Rosa woodsii Lindl. var. woodsii | 3 | Rosa ×alba L. | 1 | Rosa ×centifolia L. | 1 | Rosa ×damascena Herrm. | 2 | Rosa ×odorata (Andrews) Sweet | 3 | Rosmarinus officinalis L. | 29 | Rostrinucula dependens (Rehder) Kudô | 1 | Rotheca myricoides (Hochst.) Steane & Mabb. | 1 | Rubia tinctorum L. | 1 | Rubus cockburnianus Hemsl. | 1 | Rubus odoratus L. | 4 | Rubus parviflorus Nutt. | 2 | Rubus repens (L.) Kuntze | 1 | Rubus rolfei S. Vidal | 2 | Rudbeckia fulgida Aiton | 3 | Rudbeckia fulgida Aiton var. deamii (S. F. Blake) Perdue | 1 | Rudbeckia fulgida Aiton var. fulgida | 2 | Rudbeckia fulgida Aiton var. speciosa (Wender.) Perdue | 4 | Rudbeckia fulgida Aiton var. umbrosa (C. L. Boynton & Beadle) Cronquist | 1 | Rudbeckia laciniata L. | 4 | Rudbeckia maxima Nutt. | 2 | Rudbeckia subtomentosa Pursh | 4 | Rudbeckia triloba L. | 1 | Ruellia caroliniensis (J. F. Gmel.) Steud. | 1 | Ruellia humilis Nutt. | 1 | Ruellia spp. | 1 | Ruschia pulvinaris L. Bolus | 1 | Ruscus aculeatus L. | 6 | Sabal minor (Jacq.) Pers. | 3 | Sabal spp. | 2 | Sabatia angularis (L.) Pursh | 1 | Saccharum officinarum L. | 3 | Saccharum robustum E. W. Brandes & Jeswiet ex Grassl | 1 | Saccharum spp. | 2 | Sageretia thea (Osbeck) M. C. Johnst. | 2 | Sagittaria latifolia Willd. | 2 | Salix aegyptiaca L. | 1 | Salix arbutifolia Pall. | 1 | Salix babylonica L. | 2 | Salix caprea L. | 2 | Salix cinerea L. | 1 | Salix gracilistyla Miq. | 1 | Salix humilis Marshall | 2 | Salix hybr. | 3 | Salix matsudana Koidz. | 1 | Salix miyabeana Seemen | 1 | Salix myrsinifolia Salisb. | 1 | Salix nigra Marshall | 3 | Salix pentandra L. | 1 | Salix purpurea L. | 1 | Salix spp. | 1 | Salix tagawana Koidz. | 1 | Salix udensis Trautv. & C. A. Mey. | 1 | Salix ×fragilis L. | 1 | Salix ×leucopithecia Kimura | 1 | Salix ×sericans Tausch ex A. Kern. | 1 | Salvia amplexicaulis Lam. | 1 | Salvia apiana Jeps. | 1 | Salvia argentea L. | 1 | Salvia aurea L. | 1 | Salvia azurea Lam. | 2 | Salvia brandegeei Munz | 1 | Salvia chamaedryoides Cav. | 1 | Salvia coccinea Bucʼhoz ex Etl. | 1 | Salvia confertiflora Pohl | 1 | Salvia discolor Kunth | 1 | Salvia elegans Vahl | 2 | Salvia gesneriflora Lindl. & Paxton | 1 | Salvia glechomifolia Kunth | 1 | Salvia glutinosa L. | 1 | Salvia greggii A. Gray | 3 | Salvia hybr. | 10 | Salvia involucrata Cav. | 1 | Salvia koyamae Makino | 3 | Salvia leucantha Cav. | 2 | Salvia lyrata L. | 3 | Salvia madrensis Seem. | 1 | Salvia melissodora Lag. | 1 | Salvia mexicana L. | 1 | Salvia microphylla Kunth | 2 | Salvia miltiorrhiza Bunge | 1 | Salvia miniata Fernald | 1 | Salvia nemorosa L. | 2 | Salvia officinalis L. | 4 | Salvia przewalskii Maxim. | 1 | Salvia reflexa Hornem. | 1 | Salvia sclarea L. | 3 | Salvia sinaloensis Fernald | 1 | Salvia spp. | 6 | Salvia uliginosa Benth. | 3 | Salvia urica Epling | 1 | Salvia verticillata L. | 3 | Salvia ×jamensis J. Compton | 8 | Salvia ×sylvestris L. | 4 | Sambucus canadensis L. | 3 | Sambucus ebulus L. | 1 | Sambucus mexicana C. Presl ex DC. subsp. cerulea (Raf.) A. E. Murray | 1 | Sambucus nigra L. | 1 | Sambucus racemosa L. | 6 | Sambucus racemosa L. subsp. kamtschatica (E. L. Wolf) Hultén | 1 | Sambucus racemosa L. subsp. pubens (Michx.) House | 1 | Sambucus racemosa L. subsp. racemosa | 1 | Sambucus racemosa L. subsp. sibirica (Nakai) H. Hara | 1 | Sanguinaria canadensis L. | 5 | Sanguisorba canadensis L. | 1 | Sanguisorba minor Scop. subsp. minor | 2 | Sanguisorba officinalis L. | 5 | Sanguisorba tenuifolia Fisch. ex Link | 2 | Sansevieria cylindrica Bojer ex Hook. | 2 | Sansevieria hyacinthoides (L.) Druce | 1 | Sansevieria suffruticosa N. E. Br. | 1 | Sansevieria trifasciata Prain | 1 | Sapindus mukorossi Gaertn. | 2 | Sapindus saponaria L. | 1 | Sapindus saponaria L. var. drummondii (Hook. & Arn.) L. D. Benson | 8 | Saponaria officinalis L. | 1 | Saposhnikovia divaricata (Turcz.) Schischk. | 1 | Sarcococca confusa Sealy | 1 | Sarcococca hookeriana Baill. var. digyna Franch. | 9 | Sarcococca ruscifolia Stapf | 1 | Sarcomphalus obtusifolius (Hook. ex Torr. & A. Gray) Hauenschild | 1 | Sarracenia alata (Alph. Wood) Alph. Wood | 3 | Sarracenia hybr. | 2 | Sarracenia leucophylla Raf. | 1 | Saruma henryi Oliv. | 1 | Sasamorpha borealis (Hack.) Nakai | 1 | Sassafras albidum (Nutt.) Nees | 13 | Sassafras tzumu (Hemsl.) Hemsl. | 2 | Satureja hortensis L. | 2 | Satureja montana L. | 2 | Satureja spicigera (K. Koch) Boiss. | 2 | Saururus cernuus L. | 2 | Saururus chinensis (Lour.) Baill. | 1 | Saxifraga stolonifera Curtis | 3 | Scabiosa ochroleuca L. | 1 | Scabiosa spp. | 2 | Schima superba Gardner & Champ. | 1 | Schinus terebinthifolia Raddi | 1 | Schisandra arisanensis Hayata | 1 | Schisandra bicolor W. C. Cheng | 1 | Schisandra chinensis (Turcz.) Baill. | 5 | Schisandra glabra (Brickell) Rehder | 1 | Schisandra sphenanthera Rehder & E. H. Wilson | 2 | Schisandra spp. | 1 | Schizachyrium scoparium (Michx.) Nash | 15 | Sciadopitys verticillata (Thunb.) Siebold & Zucc. | 7 | Scilla bifolia L. | 1 | Scilla litardierei Breistr. | 1 | Scilla siberica Andrews | 9 | Scirpus cyperinus (L.) Kunth | 1 | Scrophularia nodosa L. | 1 | Scrophularia variegata M. Bieb. | 1 | Scutellaria incana Biehler | 1 | Scutellaria lateriflora L. | 1 | Scutellaria serrata Andrews | 1 | Scutellaria spp. | 1 | Secale cereale L. | 1 | Sedum album L. | 1 | Sedum mexicanum Britton | 1 | Sedum rupestre L. | 2 | Sedum rupicola G. N. Jones | 1 | Sedum sexangulare L. | 1 | Sedum spp. | 2 | Sedum ternatum Michx. | 2 | Sedum tetractinum Fröd. | 2 | Sedum ×rubrotinctum R. T. Clausen | 1 | Selaginella braunii Baker | 1 | Selaginella uncinata (Desv.) Spring | 1 | Semele androgyna (L.) Kunth | 1 | Senecio crassissimus Humbert | 1 | Senega officinalis Spach | 1 | Sequoia sempervirens (D. Don) Endl. | 5 | Serenoa repens (W. Bartram) Small | 2 | Serissa japonica (Thunb.) Thunb. | 3 | Sesamum indicum L. | 1 | Sesleria autumnalis (Scop.) F. W. Schultz | 2 | Setaria palmifolia (J. Koenig) Stapf | 2 | Shibataea kumasaca (Zoll. ex Steud.) Makino ex Nakai | 1 | Shortia galacifolia Torr. & A. Gray | 3 | Sideroxylon lanuginosum Michx. | 3 | Sideroxylon lycioides L. | 1 | Sideroxylon spp. | 1 | Silene banksia (Meerb.) Mabb. | 1 | Silene cognata (Maxim.) H. Ohashi & H. Nakai | 1 | Silene coronaria (L.) Clairv. | 3 | Silene miqueliana (Rohrb.) H. Ohashi & H. Nakai | 1 | Silene regia Sims | 1 | Silene spp. | 1 | Silene subciliata B. L. Rob. | 1 | Siliquamomum tonkinense Baill. | 1 | Silphium compositum Michx. | 1 | Silphium integrifolium Michx. | 1 | Silphium laciniatum L. | 1 | Silphium perfoliatum L. | 1 | Silphium spp. | 1 | Silphium terebinthinaceum Jacq. | 2 | Silybum marianum (L.) Gaertn. | 1 | Sinofranchetia chinensis (Franch.) Hemsl. | 1 | Sinojackia rehderiana Hu | 1 | Sinojackia xylocarpa Hu | 2 | Sinowilsonia henryi Hemsl. | 6 | Sisyrinchium angustifolium Mill. | 3 | Sisyrinchium montanum Greene | 1 | Sisyrinchium spp. | 3 | Sisyrinchium xerophyllum Greene | 1 | Skimmia japonica Thunb. | 8 | Skimmia japonica Thunb. var. intermedia Komatsu | 2 | Skimmia reevesiana (Fortune) Fortune | 3 | Smilax auriculata Walter | 1 | Smilax biflora Siebold ex Miq. | 1 | Smilax bona-nox L. | 1 | Smilax glauca Walter | 1 | Smilax herbacea L. | 1 | Smilax lasioneura Hook. | 1 | Smilax laurifolia L. | 4 | Smilax pumila Walter | 1 | Smilax rotundifolia L. | 5 | Smilax smallii Morong | 1 | Smilax walteri Pursh | 1 | Solandra maxima (Sessé & Moc.) P. S. Green | 2 | Solanum atropurpureum Schrank | 1 | Solanum dulcamaroides Poir. | 1 | Solanum pyracanthos Lam. | 1 | Solidago caesia L. | 3 | Solidago canadensis L. | 1 | Solidago erecta Banks ex Pursh | 1 | Solidago flexicaulis L. | 1 | Solidago juncea Aiton | 1 | Solidago nemoralis Aiton | 2 | Solidago odora Aiton | 3 | Solidago rigida L. | 1 | Solidago rugosa Mill. | 4 | Solidago sempervirens L. | 2 | Solidago shortii Torr. & A. Gray | 1 | Solidago sphacelata Raf. | 2 | Solidago spp. | 2 | Sophora alopecuroides L. | 1 | Sophora chrysophylla (Salisb.) Seem. | 1 | Sophora davidii (Franch.) Skeels | 3 | Sophora flavescens Aiton | 6 | Sophora spp. | 1 | Sorbaria sorbifolia (L.) A. Braun | 2 | Sorbus adamii Kárpáti | 1 | Sorbus americana Marshall | 5 | Sorbus aucuparia L. | 25 | Sorbus aucuparia L. subsp. aucuparia | 1 | Sorbus aucuparia L. subsp. pohuashanensis (Hance) McAll. | 12 | Sorbus aucuparia L. subsp. sibirica (Hedl.) Krylov | 2 | Sorbus borbasii Jáv. | 1 | Sorbus californica Greene | 1 | Sorbus cashmiriana Hedl. | 1 | Sorbus commixta Hedl. | 11 | Sorbus commixta Hedl. var. rufoferruginea C. K. Schneid. | 1 | Sorbus dacica Borbás | 2 | Sorbus discolor (Maxim.) Maxim. | 4 | Sorbus dumosa Greene | 1 | Sorbus esserteauana Koehne | 5 | Sorbus hajastana Gabrieljan | 3 | Sorbus hupehensis C. K. Schneid. | 4 | Sorbus hybr. | 1 | Sorbus koehneana C. K. Schneid. | 5 | Sorbus matsumurana (Makino) Koehne | 4 | Sorbus microphylla Wenz. | 3 | Sorbus minima (Ley) Hedl. | 1 | Sorbus randaiensis (Hayata) Koidz. | 2 | Sorbus redliana Kárpáti | 1 | Sorbus reflexipetala Koehne | 1 | Sorbus rehderiana Koehne | 1 | Sorbus roopiana Bordz. | 1 | Sorbus sambucifolia (Cham. & Schltdl.) M. Roem. | 9 | Sorbus sambucifolia (Cham. & Schltdl.) M. Roem. var. pseudogracilis C. K. Schneid. | 1 | Sorbus scopulina Greene | 10 | Sorbus scopulina Greene var. cascadensis (G. N. Jones) C. L. Hitchc. | 6 | Sorbus sitchensis M. Roem. | 4 | Sorbus sitchensis M. Roem. var. grayi (Wenz.) C. L. Hitchc. | 2 | Sorbus sitchensis M. Roem. var. sitchensis | 1 | Sorbus spp. | 9 | Sorbus teodorii Liljef. | 1 | Sorbus tianschanica Rupr. | 2 | Sorbus vilmorinii C. K. Schneid. | 1 | Sorbus wilsoniana C. K. Schneid. | 4 | Sorghastrum nutans (L.) Nash | 8 | Sorghum bicolor (L.) Moench | 1 | Spartium junceum L. | 1 | Speirantha gardenii (Hook.) Baill. | 2 | Spigelia marilandica (L.) L. | 3 | Spiraea betulifolia Pall. | 2 | Spiraea blumei G. Don | 3 | Spiraea cantoniensis Lour. | 1 | Spiraea fritschiana C. K. Schneid. | 3 | Spiraea hirsuta (Hemsl.) C. K. Schneid. var. hirsuta | 1 | Spiraea hybr. | 2 | Spiraea japonica L. f. | 19 | Spiraea media Schmidt | 2 | Spiraea miyabei Koidz. | 1 | Spiraea mongolica Maxim. | 1 | Spiraea myrtilloides Rehder | 1 | Spiraea pubescens Turcz. | 2 | Spiraea salicifolia L. | 2 | Spiraea spp. | 2 | Spiraea thunbergii Siebold ex Blume | 2 | Spiraea tomentosa L. | 3 | Spiraea trilobata L. | 2 | Spiraea virginiana Britton | 1 | Spiraea ×cinerea Zabel | 1 | Spiraea ×vanhouttei (Briot) Carrière | 1 | Sporobolus heterolepis (A. Gray) A. Gray | 6 | Sporobolus wrightii Munro ex Scribn. | 1 | Stachys byzantina K. Koch | 3 | Stachys coccinea Jacq. | 1 | Stachyurus praecox Siebold & Zucc. | 4 | Stachyurus praecox Siebold & Zucc. var. leucotrichus Hayashi | 1 | Stachyurus praecox Siebold & Zucc. var. matsuzakii (Nakai) Makino | 4 | Stachyurus salicifolius Franch. | 1 | Staphylea bumalda DC. | 5 | Staphylea colchica Steven | 1 | Staphylea holocarpa Hemsl. | 2 | Staphylea spp. | 1 | Staphylea trifolia L. | 7 | Stellaria puber Michx. | 2 | Stemona japonica (Blume) Miq. | 1 | Sternbergia lutea (L.) Ker Gawl. ex Spreng. | 3 | Stevia rebaudiana (Bertoni) Bertoni | 2 | Stewartia malacodendron L. | 28 | Stewartia monadelpha Siebold & Zucc. | 8 | Stewartia ovata (Cav.) Weath. | 26 | Stewartia pseudocamellia Maxim. | 11 | Stewartia pteropetiolata W. C. Cheng | 1 | Stewartia rostrata Spongberg | 1 | Stewartia serrata Maxim. | 4 | Stewartia sinensis Rehder & E. H. Wilson | 4 | Stewartia spp. | 2 | Stokesia laevis (Hill) Greene | 10 | Strobilanthes wallichii Nees | 1 | Stylophorum diphyllum (Michx.) Nutt. | 2 | Styphnolobium affine (Torr. & A. Gray) Walp. | 4 | Styphnolobium japonicum (L.) Schott | 8 | Styrax americanus Lam. | 13 | Styrax confusus Hemsl. | 1 | Styrax dasyanthus Perkins | 1 | Styrax grandifolius Aiton | 12 | Styrax japonicus Siebold & Zucc. | 28 | Styrax japonicus Siebold & Zucc. var. kotoensis (Hayata) Matsum. & Suzuki | 1 | Styrax macrocalyx Perkins | 1 | Styrax obassia Siebold & Zucc. | 14 | Styrax odoratissimus Champ. ex Benth. | 5 | Styrax officinalis L. | 1 | Styrax platanifolius Engelm. ex Torr. | 2 | Styrax platanifolius Engelm. ex Torr. subsp. platanifolius | 2 | Sycopsis sinensis Oliv. | 1 | Symphoricarpos orbiculatus Moench | 3 | Symphyotrichum concolor (L.) G. L. Nesom | 1 | Symphyotrichum cordifolium (L.) G. L. Nesom | 2 | Symphyotrichum ericoides (L.) G. L. Nesom | 1 | Symphyotrichum georgianum (Alexander) G. L. Nesom | 1 | Symphyotrichum grandiflorum (L.) G. L. Nesom | 1 | Symphyotrichum laeve (L.) Á. Löve & D. Löve | 1 | Symphyotrichum laeve (L.) Á. Löve & D. Löve var. laeve | 1 | Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve | 1 | Symphyotrichum novae-angliae (L.) G. L. Nesom | 3 | Symphyotrichum oblongifolium (Nutt.) G. L. Nesom | 6 | Symphyotrichum oolentangiense (Riddell) G. L. Nesom | 1 | Symphyotrichum prenanthoides (Muhl. ex Willd.) G. L. Nesom | 1 | Symphyotrichum spp. | 4 | Symphytum grandiflorum DC. | 1 | Symphytum officinale L. | 1 | Symphytum spp. | 1 | Symplocarpus foetidus (L.) Salisb. ex W. P. C. Barton | 3 | Symplocos paniculata Miq. | 6 | Symplocos spp. | 1 | Symplocos tinctoria (L.) LʼHér. | 4 | Synandra hispidula (Michx.) Baill. | 1 | Syncolostemon spp. | 1 | Syneilesis aconitifolia (Bunge) Maxim. | 1 | Syneilesis palmata (Thunb.) Maxim. | 1 | Syringa emodi Wall. ex G. Don | 1 | Syringa fauriei H. Lév. | 1 | Syringa hybr. | 4 | Syringa josikaea J. Jacq. ex Rchb. | 2 | Syringa komarowii C. K. Schneid. | 2 | Syringa komarowii C. K. Schneid. subsp. reflexa (C. K. Schneid.) P. S. Green & M. C. Chang | 2 | Syringa meyeri C. K. Schneid. | 3 | Syringa oblata Lindl. | 4 | Syringa oblata Lindl. subsp. dilatata (Nakai) P. S. Green & M. C. Chang | 8 | Syringa oblata Lindl. subsp. oblata | 2 | Syringa protolaciniata P. S. Green & M. C. Chang | 1 | Syringa pubescens Turcz. | 3 | Syringa pubescens Turcz. subsp. microphylla (Diels) M. C. Chang & X. L. Chen | 4 | Syringa pubescens Turcz. subsp. patula (Palib.) M. C. Chang & X. L. Chen | 15 | Syringa reticulata (Blume) H. Hara | 9 | Syringa reticulata (Blume) H. Hara subsp. amurensis (Rupr.) P. S. Green & M. C. Chang | 9 | Syringa reticulata (Blume) H. Hara subsp. pekinensis (Rupr.) P. S. Green & M. C. Chang | 11 | Syringa reticulata (Blume) H. Hara subsp. reticulata | 1 | Syringa spp. | 6 | Syringa sweginzowii Koehne & Lingelsh. | 1 | Syringa tomentella Bureau & Franch. | 1 | Syringa villosa Vahl | 4 | Syringa vulgaris L. | 16 | Syringa wolfii C. K. Schneid. | 6 | Syringa ×hyacinthiflora Rehder | 12 | Syringa ×laciniata Mill. | 2 | Syringa ×prestoniae McKelvey | 1 | Syringa yunnanensis Franch. | 3 | Tagetes lucida Cav. | 1 | Tagetes spp. | 1 | Taiwania cryptomerioides Hayata | 5 | Tamarix ramosissima Ledeb. | 1 | Tamarix tetrandra Pall. ex M. Bieb. | 1 | Tanacetum balsamita L. | 1 | Tanacetum parthenifolium (Willd.) Sch. Bip. | 1 | Tanacetum spp. | 1 | Tanacetum vulgare L. | 1 | Tanacetum vulgare L. f. crispum (L.) Fernald | 1 | Tara cacalaco (Humb. & Bonpl.) Molinari & Sánchez Och. | 1 | Tarchonanthus camphoratus L. | 1 | Taxodium distichum (L.) Rich. | 15 | Taxodium distichum (L.) Rich. var. distichum | 27 | Taxodium distichum (L.) Rich. var. imbricarium (Nutt.) H. B. Croom | 4 | Taxodium mucronatum Ten. | 2 | Taxus baccata L. | 11 | Taxus brevifolia Nutt. | 3 | Taxus canadensis Marshall | 5 | Taxus cuspidata Siebold & Zucc. | 11 | Taxus floridana Nutt. ex Chapm. | 4 | Taxus wallichiana Zucc. var. chinensis (Pilg.) Florin | 2 | Taxus ×media Rehder | 8 | Tecoma stans (L.) Juss. | 1 | Tecomaria capensis (Thunb.) Spach | 1 | Ternstroemia gymnanthera (Wight & Arn.) Bedd. | 1 | Tetradenia riparia (Hochst.) Codd | 1 | Tetradium daniellii (Benn.) T. G. Hartley | 4 | Tetradium ruticarpum (A. Juss.) T. G. Hartley | 1 | Teucrium canadense L. | 1 | Teucrium chamaedrys L. | 1 | Teucrium polium L. | 1 | Teucrium ×lucidrys Boom | 1 | Thalia dealbata Fraser ex Roscoe | 1 | Thalictrum actaeifolium Siebold & Zucc. | 1 | Thalictrum dasycarpum Fisch. & Avé-Lall. | 3 | Thalictrum delavayi Franch. | 1 | Thalictrum dioicum L. | 2 | Thalictrum ichangense Lecoy. ex Oliv. | 1 | Thalictrum minus L. | 1 | Thalictrum rochebruneanum Franch. & Sav. | 2 | Thalictrum spp. | 3 | Thalictrum thalictroides (L.) A. J. Eames & B. Boivin | 8 | Thalictrum thalictroides (L.) A. J. Eames & B. Boivin f. roseum (Millsp.) B. Boivin | 1 | Thelypteris decursive-pinnata (H. C. Hall) Ching | 3 | Thelypteris kunthii (Desv.) C. V. Morton | 1 | Thelypteris noveboracensis (L.) Nieuwl. | 8 | Theobroma cacao L. | 1 | Thermopsis fabacea (Pall.) DC. | 1 | Therorhodion camtschaticum (Pall.) Small | 3 | Therorhodion glandulosum Standl. ex Small | 2 | Therorhodion redowskianum (Maxim.) Hutch. | 1 | Thuja hybr. | 10 | Thuja koraiensis Nakai | 3 | Thuja occidentalis L. | 59 | Thuja plicata Donn ex D. Don | 17 | Thuja spp. | 1 | Thujopsis dolabrata (Thunb. ex L. f.) Siebold & Zucc. | 6 | Thujopsis dolabrata (Thunb. ex L. f.) Siebold & Zucc. var. hondae Makino | 1 | Thymbra spicata L. | 1 | Thymus praecox Opiz subsp. britannicus (Ronniger) Holub | 2 | Thymus pulegioides L. | 1 | Thymus quinquecostatus Čelak. | 1 | Thymus serpyllum L. | 1 | Thymus spp. | 6 | Thymus tiflisiensis Klokov & Des.-Shost. | 1 | Thymus vulgaris L. | 1 | Tiarella cordifolia L. | 10 | Tiarella hybr. | 2 | Tilia americana L. | 11 | Tilia americana L. var. americana | 1 | Tilia americana L. var. heterophylla (Vent.) Loudon | 4 | Tilia amurensis Rupr. | 8 | Tilia chinensis Maxim. | 4 | Tilia concinna Pigott | 1 | Tilia cordata Mill. | 13 | Tilia dasystyla Steven subsp. caucasica (V. Engl.) Pigott | 10 | Tilia henryana Szyszył. | 1 | Tilia japonica (Miq.) Simonk. | 7 | Tilia kiusiana Makino & Shiras. | 1 | Tilia mandshurica Maxim. & Rupr. | 6 | Tilia maximowicziana Shiras. | 1 | Tilia mongolica Maxim. | 4 | Tilia oliveri Szyszył. | 3 | Tilia paucicostata Maxim. | 2 | Tilia paucicostata Maxim. var. dictyoneura (V. Engl. ex C. K. Schneid.) Hung T. Chang & R. H. Miao | 1 | Tilia platyphyllos Scop. | 9 | Tilia spp. | 1 | Tilia tomentosa Moench | 8 | Tilia ×euchlora K. Koch | 1 | Tipularia discolor (Pursh) Nutt. | 3 | Tithonia rotundifolia (Mill.) S. F. Blake | 1 | Toona sinensis (A. Juss.) M. Roem. | 1 | Torminalis glaberrima (Gand.) Sennikov & Kurtto | 9 | Torreya californica Torr. | 1 | Torreya grandis Fortune ex Lindl. var. grandis | 1 | Torreya jackii Chun | 1 | Torreya nucifera (L.) Siebold & Zucc. | 7 | Torreya taxifolia Arn. | 63 | Toxicodendron radicans (L.) Kuntze | 1 | Trachelospermum asiaticum (Siebold & Zucc.) Nakai | 2 | Trachelospermum difforme (Walter) A. Gray | 1 | Trachelospermum jasminoides (Lindl.) Lem. | 3 | Tradescantia fluminensis Vell. | 1 | Tradescantia ohiensis Raf. | 1 | Tradescantia pallida (Rose) D. R. Hunt | 1 | Tradescantia sillamontana Matuda | 1 | Tradescantia spp. | 2 | Tradescantia subaspera Ker Gawl. | 1 | Tradescantia virginiana L. | 1 | Trautvetteria caroliniensis (Walter) Vail | 1 | Trichostema dichotomum L. | 1 | Tricyrtis dilatata Nakai | 1 | Tricyrtis formosana Baker | 2 | Tricyrtis hirta (Thunb.) Hook. | 7 | Tricyrtis hybr. | 5 | Tricyrtis latifolia Maxim. | 2 | Tricyrtis macrantha Maxim. | 1 | Tricyrtis macropoda Miq. | 4 | Tricyrtis perfoliata Masam. | 1 | Tricyrtis spp. | 1 | Tridens flavus (L.) Hitchc. | 1 | Trillium camschatcense Ker Gawl. | 1 | Trillium catesbaei Elliott | 2 | Trillium cuneatum Raf. | 4 | Trillium decumbens Harb. | 3 | Trillium discolor Wray ex Hook. | 1 | Trillium erectum L. | 6 | Trillium flexipes Raf. | 3 | Trillium grandiflorum (Michx.) Salisb. | 13 | Trillium luteum (Muhl.) Harb. | 3 | Trillium recurvatum L. C. Beck | 1 | Trillium sessile L. | 1 | Trillium spp. | 2 | Trillium stamineum Harb. | 3 | Trillium sulcatum T. S. Patrick | 1 | Trillium tschonoskii Maxim. | 1 | Trillium vaseyi Harb. | 1 | Trillium viride L. C. Beck | 1 | Triosteum perfoliatum L. | 1 | Tripidium arundinaceum (Retz.) Welker et al. | 1 | Tripidium ravennae (L.) H. Scholz | 1 | Tripora divaricata (Maxim.) P. D. Cantino | 1 | Tripsacum dactyloides (L.) L. | 2 | Tripterygium regelii Sprague & Takeda | 2 | Triteleia laxa Benth. | 1 | Trithrinax campestris (Burmeist.) Drude & Griseb. | 1 | Triticum aestivum L. | 1 | Tritonia parvula N. E. Br. | 1 | Trochodendron aralioides Siebold & Zucc. | 5 | Trollius altaicus C. A. Mey. subsp. pulcher (Makino) Kadota | 1 | Trollius chinensis Bunge | 3 | Tsuga canadensis (L.) Carrière | 93 | Tsuga caroliniana Engelm. | 6 | Tsuga chinensis (Franch.) E. Pritz. | 46 | Tsuga chinensis (Franch.) E. Pritz. var. oblongisquamata W. C. Cheng & L. K. Fu | 5 | Tsuga diversifolia (Maxim.) Mast. | 5 | Tsuga dumosa (D. Don) Eichler | 2 | Tsuga forrestii Downie | 1 | Tsuga heterophylla (Raf.) Sarg. | 4 | Tsuga hybr. | 31 | Tsuga mertensiana (Bong.) Carrière | 4 | Tsuga sieboldii Carrière | 6 | Tsuga ulleungensis G. P. Holman et al. | 1 | Tulbaghia violacea Harv. | 2 | Tulipa altaica Pall. ex Spreng. var. altaica | 1 | Tulipa hybr. | 1 | Tulipa saxatilis Sieber ex Spreng. | 1 | Tulipa tetraphylla Regel | 1 | Typha latifolia L. | 1 | Ulmus alata Michx. | 2 | Ulmus americana L. | 16 | Ulmus castaneifolia Hemsl. | 6 | Ulmus changii W. C. Cheng | 3 | Ulmus chenmoui W. C. Cheng | 2 | Ulmus crassifolia Nutt. | 2 | Ulmus davidiana Planch. | 5 | Ulmus davidiana Planch. var. davidiana | 1 | Ulmus davidiana Planch. var. japonica (Sarg. ex Rehder) Nakai | 5 | Ulmus elongata L. K. Fu & C. S. Ding | 1 | Ulmus glabra Huds. | 1 | Ulmus glaucescens Franch. var. lasiocarpa Rehder | 1 | Ulmus harbinensis S. Q. Nie & G. Q. Huang | 1 | Ulmus hybr. | 10 | Ulmus laciniata Mayr ex Schwapp. | 2 | Ulmus lamellosa Z. Wang & S. L. Chang | 1 | Ulmus macrocarpa Hance | 3 | Ulmus microcarpa L. K. Fu | 1 | Ulmus minor Mill. | 4 | Ulmus parvifolia Jacq. | 24 | Ulmus prunifolia W. C. Cheng & L. K. Fu | 1 | Ulmus pumila L. | 1 | Ulmus rubra Muhl. | 2 | Ulmus serotina Sarg. | 1 | Ulmus spp. | 3 | Ulmus szechuanica W. P. Fang | 2 | Ulmus villosa Brandis ex Gamble | 1 | Umbellularia californica (Hook. & Arn.) Nutt. | 2 | Ungnadia speciosa Endl. | 2 | Unident spp. | 1 | Uvularia grandiflora Sm. | 1 | Uvularia perfoliata L. | 2 | Uvularia sessilifolia L. | 1 | Vaccinium angustifolium Aiton | 1 | Vaccinium arboreum Marshall | 12 | Vaccinium arctostaphylos L. | 1 | Vaccinium bracteatum Thunb. | 3 | Vaccinium corymbosum L. | 6 | Vaccinium crassifolium Andrews | 1 | Vaccinium darrowii Camp | 1 | Vaccinium elliottii Chapm. | 1 | Vaccinium erythrocarpum Michx. | 2 | Vaccinium macrocarpon Aiton | 1 | Vaccinium myrtilloides Michx. | 1 | Vaccinium myrtillus L. | 2 | Vaccinium oldhamii Miq. | 1 | Vaccinium ovalifolium Sm. | 2 | Vaccinium pallidum Aiton | 5 | Vaccinium praestans Lamb. | 1 | Vaccinium scoparium Leiberg ex Coville | 1 | Vaccinium spp. | 10 | Vaccinium stamineum L. | 6 | Vaccinium uliginosum L. | 1 | Vaccinium virgatum Aiton | 1 | Vaccinium vitis-idaea L. | 1 | Valeriana officinalis L. | 2 | Valeriana pauciflora Michx. | 1 | Vanilla planifolia Andrews | 1 | Veratrum maackii Regel var. parviflorum (Maxim. ex Miq.) H. Hara | 1 | Veratrum nigrum L. | 1 | Veratrum virginicum (L.) W. T. Aiton | 1 | Veratrum viride Aiton | 2 | Verbascum phlomoides L. | 1 | Verbascum thapsus L. | 1 | Verbena bonariensis L. | 1 | Verbena hastata L. | 2 | Verbena rigida Spreng. | 1 | Verbena urticifolia L. | 1 | Vernonia lettermanii Engelm. ex A. Gray | 3 | Vernonia missurica Raf. | 1 | Vernonia noveboracensis (L.) Michx. | 3 | Vernonia spp. | 2 | Veronica prostrata L. | 1 | Veronica spicata L. | 1 | Veronicastrum sibiricum (L.) Pennell | 1 | Veronicastrum virginicum (L.) Farw. | 4 | Viburnum acerifolium L. | 59 | Viburnum betulifolium Batalin | 12 | Viburnum bitchiuense Makino | 9 | Viburnum brachybotryum Hemsl. | 1 | Viburnum bracteatum Rehder | 1 | Viburnum buddleifolium C. H. Wright | 1 | Viburnum burejaeticum Regel & Herder | 7 | Viburnum carlesii Hemsl. | 5 | Viburnum cassinoides L. | 10 | Viburnum cinnamomifolium Rehder | 1 | Viburnum congestum Rehder | 2 | Viburnum cotinifolium D. Don | 2 | Viburnum cylindricum Buch.-Ham. ex D. Don | 1 | Viburnum dentatum L. | 68 | Viburnum dentatum L. var. deamii (Rehder) Fernald | 2 | Viburnum dentatum L. var. lucidum Aiton | 4 | Viburnum dentatum L. var. scabrellum Torr. & A. Gray | 2 | Viburnum dilatatum Thunb. | 10 | Viburnum dilatatum Thunb. f. pilosulum Nakai | 1 | Viburnum ellipticum Hook. | 3 | Viburnum erosum Thunb. | 11 | Viburnum farreri Stearn | 1 | Viburnum foetidum Wall. | 1 | Viburnum furcatum Blume ex Maxim. | 1 | Viburnum glomeratum Maxim. | 2 | Viburnum grandiflorum Wall. ex DC. | 1 | Viburnum henryi Hemsl. | 2 | Viburnum hupehense Rehder | 6 | Viburnum hybr. | 13 | Viburnum ichangense (Hemsl.) Rehder | 3 | Viburnum japonicum (Thunb.) Spreng. | 2 | Viburnum lantana L. | 4 | Viburnum lantanoides Michx. | 10 | Viburnum lentago L. | 39 | Viburnum lobophyllum Graebn. | 1 | Viburnum macrocephalum Fortune | 4 | Viburnum melanocarpum P. S. Hsu | 2 | Viburnum molle Michx. | 3 | Viburnum mongolicum (Pall.) Rehder | 2 | Viburnum nitidum Aiton | 3 | Viburnum nudum L. | 25 | Viburnum obovatum Walter | 3 | Viburnum odoratissimum Ker Gawl. var. awabuki (K. Koch) Zabel | 7 | Viburnum opulus L. | 6 | Viburnum opulus L. var. americanum Aiton | 20 | Viburnum opulus L. var. opulus | 6 | Viburnum opulus L. var. sargentii (Koehne) Takeda | 25 | Viburnum plicatum Thunb. | 2 | Viburnum plicatum Thunb. var. tomentosum Miq. | 9 | Viburnum propinquum Hemsl. | 1 | Viburnum prunifolium L. | 21 | Viburnum rafinesqueanum Schult. | 5 | Viburnum rhytidophyllum Hemsl. | 9 | Viburnum rufidulum Raf. | 26 | Viburnum schensianum Maxim. | 10 | Viburnum sempervirens K. Koch | 1 | Viburnum setigerum Hance | 4 | Viburnum setigerum Hance f. aurantiacum Rehder | 3 | Viburnum sieboldii Miq. | 3 | Viburnum spp. | 12 | Viburnum tinus L. | 2 | Viburnum utile Hemsl. | 4 | Viburnum veitchii C. H. Wright | 1 | Viburnum wrightii Miq. | 3 | Viburnum ×burkwoodii Burkwood & Skipwith | 7 | Viburnum ×carlcephalum Burkwood ex Rullo et al. | 1 | Viburnum ×rhytidophylloides Valck. Sur. | 3 | Vicia subrotunda (Maxim.) Czefr. | 1 | Vicia unijuga A. Braun | 1 | Vinca minor L. | 7 | Vincetoxicum atratum (Bunge) C. Morren & Decne. | 1 | Vincetoxicum forrestii (Schltr.) C. Y. Wu & D. Z. Li | 1 | Viola adunca Sm. | 1 | Viola collina Besser | 1 | Viola cucullata Aiton | 1 | Viola hastata Michx. | 1 | Viola labradorica Schrank | 2 | Viola odorata L. | 2 | Viola palmata L. | 1 | Viola pubescens Aiton | 3 | Viola sororia Willd. | 4 | Viola spp. | 2 | Viola striata Aiton | 3 | Viola variegata Fisch. ex Link | 1 | Viola walteri House | 3 | Vitex agnus-castus L. | 3 | Vitex negundo L. | 2 | Vitex negundo L. var. cannabifolia (Siebold & Zucc.) Hand.-Mazz. | 1 | Vitex negundo L. var. incisa (Lam.) C. B. Clarke | 5 | Vitex rotundifolia L. f. | 5 | Vitis aestivalis Michx. var. aestivalis | 2 | Vitis amurensis Rupr. | 2 | Vitis cinerea (Engelm.) Millardet var. floridana Munson | 1 | Vitis coignetiae Pulliat ex Planch. | 1 | Vitis hybr. | 1 | Vitis labrusca L. | 2 | Vitis rotundifolia Michx. | 2 | Vitis vinifera L. subsp. sylvestris Hegi | 1 | Vitis vinifera L. subsp. vinifera | 2 | Vitis vulpina L. | 2 | Vitis ×novae-angliae Fernald | 1 | Weigela coraeensis Thunb. | 1 | Weigela decora (Nakai) Nakai | 4 | Weigela floribunda (Siebold & Zucc.) K. Koch | 1 | Weigela florida (Bunge) A. DC. | 13 | Weigela hortensis (Siebold & Zucc.) K. Koch | 5 | Weigela middendorffiana (Carrière) K. Koch | 6 | Weigela praecox (Lemoine) L. H. Bailey | 8 | Weigela sinica (Rehder) H. Hara | 3 | Weigela spp. | 1 | Weigela subsessilis (Nakai) L. H. Bailey | 4 | Whipplea modesta Torr. | 4 | Wikstroemia pampaninii Rehder | 1 | Wisteria brachybotrys Siebold & Zucc. | 4 | Wisteria floribunda (Willd.) DC. | 9 | Wisteria frutescens (L.) Poir. | 6 | Wisteria sinensis (Sims) DC. | 2 | Wisteria ×valderi J. Compton | 1 | Withania somnifera (L.) Dunal | 1 | Wollemia nobilis W. G. Jones et al. | 1 | Woodsia obtusa (Sw.) Torr. | 1 | Wrightia religiosa (Teijsm. & Binn.) Benth. ex Hook. f. | 1 | ×Brasso-cattleya spp. | 1 | ×Chitalpa tashkentensis T. S. Elias & Wisura | 2 | ×Fatshedera lizei (hort. ex Cochet) Guillaumin | 11 | ×Hedlundia thuringiaca (Nyman) Sennikov & Kurtto | 1 | ×Heucherella spp. | 1 | ×Phyllosasa tranquillans (Koidz.) Demoly | 1 | ×Sorbaronia fallax (C. K. Schneid.) C. K. Schneid. | 2 | ×Sycoparrotia semidecidua P. K. Endress & Anliker | 1 | ×Tormaria latifolia (Lam.) Mezhenskyj | 3 | ×Tormariosorbus intermedia (Ehrh.) J. M. H. Shaw | 6 | Xanthoceras sorbifolium Bunge | 1 | Xanthorhiza simplicissima Marshall | 13 | Xanthosoma spp. | 2 | Xanthosoma violaceum Schott | 1 | Ximenia americana L. | 1 | Xylococcus bicolor Nutt. | 3 | Yucca aloifolia L. | 1 | Yucca arkansana Trel. subsp. louisianensis (Trel.) Hochstätter | 2 | Yucca constricta Buckley | 1 | Yucca elata Engelm. | 1 | Yucca filamentosa L. | 6 | Yucca flaccida Haw. | 2 | Yucca gloriosa L. var. gloriosa | 1 | Yucca gloriosa L. var. recurvifolia (Salisb.) Engelm. | 1 | Yucca harrimaniae Trel. | 1 | Yucca necopina Shinners | 1 | Yucca pallida McKelvey | 3 | Yucca spp. | 1 | Zabelia biflora (Turcz.) Makino | 3 | Zabelia dielsii (Graebn.) Makino | 1 | Zabelia mosanensis (T. H. Chung ex Nakai) Hisauti & Hara | 3 | Zabelia tyaihonii (Nakai) Hisauti & Hara | 1 | Zantedeschia albomaculata (Hook.) Baill. | 1 | Zanthoxylum americanum Mill. | 1 | Zanthoxylum armatum DC. | 2 | Zanthoxylum bungeanum Maxim. | 1 | Zanthoxylum clava-herculis L. | 4 | Zanthoxylum coreanum Nakai | 1 | Zanthoxylum fagara (L.) Sarg. | 1 | Zanthoxylum hirsutum Buckley | 1 | Zanthoxylum molle Rehder | 1 | Zanthoxylum nitidum (Roxb.) DC. | 1 | Zanthoxylum pilosulum Rehder & E. H. Wilson | 4 | Zanthoxylum piperitum (L.) DC. | 4 | Zanthoxylum schinifolium Siebold & Zucc. | 3 | Zanthoxylum simulans Hance | 2 | Zanthoxylum spp. | 2 | Zea mays L. | 1 | Zelkova carpinifolia (Pall.) K. Koch | 13 | Zelkova schneideriana Hand.-Mazz. | 3 | Zelkova serrata (Thunb.) Makino | 26 | Zelkova sinica C. K. Schneid. | 1 | Zelkova spp. | 1 | Zenobia pulverulenta (W. Bartram ex Willd.) Pollard | 9 | Zephyranthes hybr. | 1 | Zephyranthes insularum H. H. Hume ex Moldenke | 1 | Zingiber mioga (Thunb.) Roscoe | 5 | Zingiber officinale Roscoe | 1 | Zinnia spp. | 1 | Zizia aptera (A. Gray) Fernald | 1 | Zizia aurea (L.) W. D. J. Koch | 1 | Ziziphora spp. | 1 | Ziziphus jujuba Mill. | 2 |