Details for: NA 89112, Ilex crenata Thunb., NA 89112


Summary Data
Taxonomy:
Ilex crenata Thunb.
Top Name:
NA 89112
Origin:
–
Maintained:
National Arboretum
Received by NPGS:
17 Jul 2025
Improvement Status:
Wild material
Life Habit:
Shrub
Availability
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Core Passport Data
Taxonomy:
Ilex crenata Thunb.
Top Name:
NA 89112
Origin:
–
Maintained:
National Arboretum
Received by NPGS:
17 Jul 2025
Improvement Status:
Wild material
Life Habit:
Shrub
Source History
Accession Names and Identifiers
NA 89112
Type: Site identifier
Group: NA
U.S. National Arboretum

Narrative
One plant long considered and mapped as an individual of NA 44889, Ilex crenata var. paludosa (at least as early as 1993) is very different in habit from the lower, spreading plant of NA 44889 next to it. It is unclear if this could have been another accession, or if seed collected from var. paludosa could have outcrossed with another taxon to result in this growth habit. Assigned a new number out of an abundance of caution; likely to have been collected from the wild in Japan in any case, since all of the plants in the bed AC-J-L planting were.The plant might be male or non-flowering in 2025, as there are no fruit present, and I did not see any floral remants.
Ilex crenata Thunb.
Genus:
Ilex
Family:
Aquifoliaceae
Nomen number:

19691
Place of publication:

J. A. Murray, Syst. veg. ed. 14:168. 1784 May-Jun (Fl. jap. 78. 1784 Aug)
Comment:
for authorship of Thunberg names first published by Murray see comments in Taxon 45:672. 1996 & 46:311-314. 1997
Verified:
11/01/1985 by ARS Systematic Botanists.
Other conspecific taxa
Ilex crenata Thunb. f. crenata (0 active accession[s])
Ilex crenata Thunb. f. watanabeana Makino (0 active accession[s])
Ilex crenata Thunb. var. crenata (0 active accession[s])
Ilex crenata Thunb. var. fukasawana Makino (0 active accession[s])
Ilex crenata Thunb. var. paludosa (Nakai) H. Hara (2 active accession[s])
Autonyms (not in current use), synonyms and invalid designations
Heterotypic Synonym(s)
Ilex crenata Thunb. f. convexa (Makino) Rehder
Ilex crenata Thunb. f. luteovariegata (Regel) Rehder
Ilex crenata Thunb. f. microphylla Rehder
Ilex crenata Thunb. var. nummularia Yatabe
Ilex nummularia Franch. & Sav.

Common names
LanguageNameAlternate namenoteseqCitation
Englishbox-leaf holly  1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL.
EnglishJapanese holly  1Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening
Frenchhoux crénelé  2Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen 1477.
Germanjapanische Stechpalme  2Erhardt, W. et al. 2008. Der große Zander: Enzyklopädie der Pflanzennamen 1477.
Swedishjapansk järnek  2Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
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