| 0 | PI 479626 | NA 51051 | Trillium smallii Maxim. | Japan | | | Historic | 1982 | COLLECTED | 09/14/1982 | Kasai-Okuchi area, Hokkaido Univ., Teshio Forest, Horonobe-cho, Teshio-gun | 45.00000000, 141.96666667 | 125 | | Wild material | Snow cover 1-2m per annum. Minimum temperature -17C. Growing on moist bank. | 1374562 | PI 479626 |
| 1 | PI 479627 | NA 51259 | Trillium tschonoskii Maxim. | Japan | | | Historic | 1982 | COLLECTED | 10/01/1982 | Hokkaido Univ. Tomakomai Exp. Forest, Tomakomai-shi, Hokkaido | 42.63333333, 141.65000000 | | | Wild material | Snow cover 40cm, ground freeze to 70cm. Minimum temperature -30C. Growing in woodland. | 1374563 | PI 479627 |
| 2 | PI 316410 | Col. No. K-34 | Trillium tschonoskii Maxim. | Korea, South | | | Historic | 1966 | COLLECTED | | Trail to Bong Nai Waterfall, Ullung Do | | 301 | | | | 1707940 | PI 316410 |
| 3 | NA 82976 | (double-flowered form) | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium grandiflorum (double-flowered form). Curator's note: "Was planted before 1986. Comment from Cole Burrell, former curator, was that it might have come from Wurdack" -- there are two sources with this name, but John Wurdack is the likely source of this material if that proves correct. One large plant is growing in bed FV-6T at the time of accessioning. Form received: unknown propagule type. | 2153165 | NA 82976 |
| 4 | NA 82975 | NA 82975 | Trillium erectum L. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium erectum. Curator's note: "an unidentified Trillium was planted at this location- NA #13408. This may be that plant, but we can not be certain. Planted before 1986." A small mass of plants are located in bed FV-11 at the time of accessioning. Form received: unknown propagule type. | 2153164 | NA 82975 |
| 5 | NA 82974 | NA 82974 | Trillium catesbaei Elliott | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium catesbaei. Curator's note: "could be one of the earlier accessions, unfortunately no record label is present, and no locations are designated [on accession cards] for a number of the earlier accessions. Planted before 1986." A small mass of mature plants in bed FV-10 at the time of accessioning. Form received: unknown propagule type. | 2153163 | NA 82974 |
| 6 | NA 82973 | NA 82973 | Trillium luteum (Muhl.) Harb. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium luteum. This was planted in Fern Valley before 1986, according to the curator; one large cluster in bed FV-14 at time of accessioning. Form received: unknown propagule type. | 2153162 | NA 82973 |
| 7 | NA 82321 | NA 82321 | Trillium luteum (Muhl.) Harb. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium luteum. No info. Planted in Fern Valley previous to 1986. Form received: unknown propagule type. | 2152881 | NA 82321 |
| 8 | NA 82316 | NA 82316 | Trillium cuneatum Raf. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium cuneatum. Plant of unknown source, acquired before 1987. Transplanted from FV-N-09 to FV-R5 in approximately 2002. Petals are particularly dark and velvety when fresh. Single plant forming an 18" clump at present. Form received: unknown propagule type. | 2152876 | NA 82316 |
| 9 | NA 73510 | (white form) | Trillium erectum L. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium erectum (white form). Old USNA plant. Form received: unknown propagule type. | 2149708 | NA 73510 |
| 10 | NA 73508 | NA 73508 | Trillium erectum L. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium erectum. Form received: unknown propagule type. | 2149706 | NA 73508 |
| 11 | NA 73435 | NA 73435 | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium grandiflorum. Lineage includes both NA 60960 and NA 57850, whose sources are Wintergreen and J. Feely, respectively. This mass is a mixture of both of these NA#s. Form received: unknown propagule type. | 2149661 | NA 73435 |
| 12 | NA 73434 | NA 73434 | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium grandiflorum. Form received: unknown propagule type. | 2149660 | NA 73434 |
| 13 | NA 73373 | NA 73373 | Trillium cuneatum Raf. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium cuneatum. Form received: unknown propagule type. | 2149632 | NA 73373 |
| 14 | NA 73372 | NA 73372 | Trillium luteum (Muhl.) Harb. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium luteum. Form received: unknown propagule type. | 2149631 | NA 73372 |
| 15 | NA 88728 | RJL2022PA-002 | Trillium sp. | Pennsylvania, United States | NA | | Not Available | 2022 | COLLECTED | 07/09/2022 | West Grove, PA: Goddard Park: woodlands above a small unnamed creek that dumps into the Middle Branch White Clay Creek. | 39.80606350, -75.82805869 | 109 | Mesic, well-drained habitat of mature and undisturbed deciduous woodlands, well above a small unnamed creek that feeds into the Middle Branch White Clay Creek. Plants are growing in high understory shade with very little direct sun during most of the day. The woodlands are bordered by numerous housing developments and land converted to meadows; hence there is significant first order edge that is heavily impacted by invasive plant intrusion. Slope: 0 to 3 percent. Aspect: West. Soils are classified as Glenelg silt loam, 3 to 8 percent slopes (GgB); this series consists of fine-loamy, mixed, semiactive, mesic, well drained soils formed in residuum weathered from micaceous schist on uplands of the Blue Ridge and the Northern Piedmont. Saturated hydraulic conductivity is moderately high in the subsoil and moderately high to high in the substratum. This upper horizon of this soil is undifferentiated, mostly poorly drained sandy bottomland soils intermingled with decomposing organic litter and eroded silts and clays due to erosion. | Wild material | Recorded at the U.S. National Arboretum as Trillium cernuum. | 2170990 | NA 88728 |
| 16 | NA 86081 | NA 86081 | Trillium decumbens Harb. | | NA | | Not Available | 2019 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium decumbens. Seed from collection of Harold Holmes, Holmes Trillium Research (HTR); Trillium-L Trillium Seed List 2019, no. 33 on list; seed sent by Chad Inks, Toad Shade Garden. | 2154596 | NA 86081 |
| 17 | NA 86082 | NA 86082 | Trillium decumbens Harb. | | NA | | Not Available | 2019 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium decumbens. | 2154597 | NA 86082 |
| 18 | OPGC 7468 | CBG-8798 | Trillium recurvatum L. C. Beck | Wisconsin, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 2092708 | OPGC 7468 |
| 19 | OPGC 7470 | CBG-8804 | Trillium recurvatum L. C. Beck | Illinois, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 2092714 | OPGC 7470 |
| 20 | NA 83673 | 'Flore Pleno' | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 2016 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Trillium grandiflorum 'Flore Pleno'. | 2153318 | NA 83673 |
| 21 | OPGC 6045 | CBG-2243 | Trillium grandiflorum (Michx.) Salisb. | Illinois, United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1919728 | OPGC 6045 |
| 22 | NA 82119 | NA 82119 | Trillium grandiflorum (Michx.) Salisb. | Ohio, United States | NA | | Not Available | 2014 | COLLECTED | 06/03/2014 | Arc of Appalachia Preserve System: Highlands Nature Sanctuary, Barrett's Rim Trail east of Rocky Fork Creek. | | | Rich open forest that slopes west down to the creek. | | | 1952090 | NA 82119 |
| 23 | OPGC 3951 | PZSH2011-28 | Trillium sp. | Louisiana, United States | OPGC | | Not Available | 2011 | COLLECTED | 04/09/2011 | West Feliciana Parish; On the property of the Magnuson Hotel, St. Francisville; Forested, rolling hills to W of hotel entrance. | 30.47036000, -91.22340000 | 36 | Mixed hardwood forest; Podophyllum peltatum, Firmiana simplex, Lonicera japonica, Ligustrum japonicum. | Wild material | Plants erect, to 25 cm tall; flower faded, presumably brick to maroon-red; leaves mottled silver and green. | 1907085 | OPGC 3951 |
| 24 | OPGC 3938 | PZSH2011-15 | Trillium sp. | Alabama, United States | OPGC | | Not Available | 2011 | COLLECTED | 04/06/2011 | Crenshaw County; Approx 1 miles S of intersection of State Route 10 and county road 83 (dirt road). | 31.73063000, -86.45434000 | 102 | Growing in limestone ballast and snady alluvium of stream crossing adjacent flooplain forest; Acer barbatum, Decumaria barbara, Liriodendron tulipifera, Ostrya virginiana. | Wild material | Erect stems to 25 cm tall, flowers,three-petaled sessile flowers, flowers brick red to maroon with copper tints; Leaves mottled light green, dark green, and silver. | 1907072 | OPGC 3938 |
| 25 | OPGC 3925 | PZSH2011-2 | Trillium sp. | Alabama, United States | OPGC | | Not Available | 2011 | COLLECTED | 04/02/2011 | Coosa County, SE of the juncture of Rt. 231 and Hatchet Creek. | 32.94285000, -86.20368000 | 119 | On moderate to steep bluffs along the roadside in the Hatchet Creek valley; Mixed hardwood forest; Fagus grandifolia, Aesculus pavia, Hydrangea quercifolia, Hexastylis arifolia var. ruthii, Polygonatum biflorum. | Wild material | Erect plants to 25 cm tall; flowers purple-maroon to brick-red, leaves heavily mottled in green, gray-green, and charcoal hues. | 1907059 | OPGC 3925 |
| 26 | NA 82759 | NA 82759 | Trillium stamineum Harb. | | NA | | Not Available | 2010 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium stamineum. | 2153037 | NA 82759 |
| 27 | NA 82760 | NA 82760 | Trillium cuneatum Raf. | | NA | | Not Available | 2010 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium cuneatum. | 2153038 | NA 82760 |
| 28 | NA 82761 | (upright Alabama form) | Trillium flexipes Raf. | | NA | | Not Available | 2010 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium flexipes (upright Alabama form). Presumed to be derived from a form originally collected in Alabama. | 2153039 | NA 82761 |
| 29 | NA 82762 | (pink form) | Trillium erectum L. | | NA | | Not Available | 2010 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium erectum (pink form). | 2153040 | NA 82762 |
| 30 | NA 82763 | (northern form) | Trillium flexipes Raf. | | NA | | Not Available | 2010 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium flexipes (northern form). Presumed to be derived from a form originally collected in the northern part of the species' range. | 2153041 | NA 82763 |
| 31 | NA 79420 | NA 79420 | Trillium grandiflorum (Michx.) Salisb. | Virginia, United States | NA | | Not Available | 2010 | COLLECTED | 06/30/2010 | G. Richard Thompson Wildlife Management Area, Appalachian Trail | | | Rich deciduous forest | | | 1951035 | NA 79420 |
| 32 | NA 79426 | NA 79426 | Trillium grandiflorum (Michx.) Salisb. | Virginia, United States | NA | | Not Available | 2010 | COLLECTED | 07/02/2010 | G. Richard Thompson Wildlife Management Area, Vernon Smith Trail. Lat./Lon. between FV-2010-8 and FV-2010-10 (between 38 degrees 56' 29.696" N, 78 degrees 01' 20.805" W and 38 degrees 56' 08.477" N, 78 degrees 01' 34.524" W) | | | | | | 1950882 | NA 79426 |
| 33 | OPGC 3494 | TX-26 | Trillium gracile J. D. Freeman | Texas, United States | OPGC | | Not Available | 2010 | COLLECTED | 05/27/2010 | Upper West Gulf Coastal Plain. Newton County. CR 1090 Roadside approx. 0.25 miles south of Little Cow Creek. Collection made in Indian Hills area. | 31.04819400, -93.78247200 | 116 | Roadside ROW/forest edge. Land form: Rolling hills. Land Use: Roadside ROW. Geology: Sandstone. Soil Texture: Sandy. Soil color: Reddish-tan. | Wild material | | 1898267 | OPGC 3494 |
| 34 | OPGC 3495 | TX-65 | Trillium gracile J. D. Freeman | Texas, United States | OPGC | | Not Available | 2010 | COLLECTED | 05/26/2010 | Sabine national Forest. West of Sexton on CR 330. | 31.52370000, -93.92680000 | 132 | Between roadside and forest edge, shade. | Wild material | | 1898268 | OPGC 3495 |
| 35 | NA 79075 | NA 79075 | Trillium stamineum Harb. | | NA | | Not Available | 2009 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium stamineum. | 2151597 | NA 79075 |
| 36 | NA 79077 | (red) | Trillium sulcatum T. S. Patrick | | NA | | Not Available | 2009 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium sulcatum (red). | 2151598 | NA 79077 |
| 37 | NA 78072 | 'Shenk's Ferry' | Trillium erectum L. | | NA | | Not Available | 2009 | | | | | | | | | 1953267 | NA 78072 |
| 38 | NA 78073 | NA 78073 | Trillium flexipes Raf. | | NA | | Not Available | 2009 | | | | | | | Wild material | Full name as recorded at U.S. National Arboretum: Trillium flexipes. | 2151235 | NA 78073 |
| 39 | NA 77111 | NA 77111 | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 2007 | | | | | | | Wild material | Full name as recorded at U.S. National Arboretum: Trillium grandiflorum. | 2150933 | NA 77111 |
| 40 | OPGC 5552 | 226594 | Trillium ovatum Pursh | California, United States | OPGC |  | Not Available | 2007 | | | | | | | Wild material | | 1718975 | OPGC 5552 |
| 41 | NA 75697 | (double-flowered form) | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 2006 | | | | | | | Clone | Full name as recorded at U.S. National Arboretum: Trillium grandiflorum (double-flowered form). Division of plants originally from New Hampshire | 2150477 | NA 75697 |
| 42 | NA 81076 | SI-2006-058 | Trillium sp. | Russian Federation | NA | | Not Available | 2006 | COLLECTED | 08/05/2005 | | | | | | | 1922821 | NA 81076 |
| 43 | NA 74285 | NA 74285 | Trillium tschonoskii Maxim. | | NA | | Not Available | 2004 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium tschonoskii. | 2149974 | NA 74285 |
| 44 | NA 73007 | NA 73007 | Trillium camschatcense Ker Gawl. | | NA | | Not Available | 2003 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium camschatcense. | 2149440 | NA 73007 |
| 45 | NA 71550 | NA 71550 | Trillium sessile L. | Virginia, United States | NA | | Not Available | 2001 | COLLECTED | 05/2001 | McLean/Langley area; Potomac River, 1/4 mile north of Amercian Legion Bridge on VA side. | | | | | | 1951576 | NA 71550 |
| 46 | NA 63625 | NA 63625 | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 1992 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium grandiflorum. | 2147156 | NA 63625 |
| 47 | NA 73498 | NA 73498 | Trillium cuneatum Raf. | | NA | | Not Available | 1990 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium cuneatum. Tissue-cultured plants from Harry Swartz, University of Maryland. Original source unknown. | 2149697 | NA 73498 |
| 48 | NA 60960 | NA 60960 | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 1989 | COLLECTED | 1989 | Construction site; Wintergreen, VA | | 914 | | | | 1952254 | NA 60960 |
| 49 | NA 59250 | NA 59250 | Trillium viride L. C. Beck | | NA | | Not Available | 1987 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium viride. | 2146566 | NA 59250 |
| 50 | NA 58402 | NA 58402 | Trillium decumbens Harb. | | NA | | Not Available | 1986 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium decumbens. | 2146473 | NA 58402 |
| 51 | NA 57850 | NA 57850 | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 1986 | | | | | | | Wild material | Full name as recorded at U.S. National Arboretum: Trillium grandiflorum. | 2146381 | NA 57850 |
| 52 | NA 53778 | NA 53778 | Trillium discolor Wray ex Hook. | | NA | | Not Available | 1984 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium discolor. | 2145830 | NA 53778 |
| 53 | NA 53779 | NA 53779 | Trillium stamineum Harb. | | NA | | Not Available | 1984 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium stamineum. | 2145831 | NA 53779 |
| 54 | NA 53780 | NA 53780 | Trillium vaseyi Harb. | | NA | | Not Available | 1984 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium vaseyi. | 2145832 | NA 53780 |
| 55 | NA 52386 | NA 52386 | Trillium erectum L. | | NA | | Not Available | 1983 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Trillium erectum. Form received: division. | 2145676 | NA 52386 |
| 56 | NA 52387 | NA 52387 | Trillium grandiflorum (Michx.) Salisb. | | NA | | Not Available | 1983 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium grandiflorum. | 2145677 | NA 52387 |
| 57 | NA 52388 | NA 52388 | Trillium catesbaei Elliott | | NA | | Not Available | 1983 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium catesbaei. | 2145678 | NA 52388 |
| 58 | NA 42289 | NA 42289 | Trillium recurvatum L. C. Beck | | NA | | Not Available | 1978 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Trillium recurvatum. | 2144952 | NA 42289 |