| 0 | PI 323709 | Col. No. V 64-535 | Heuchera eastwoodiae Rosend. et al. | Utah, United States | | | Historic | 1967 | COLLECTED | | East of tunnel, Zion National Park | | | | | | 1714413 | PI 323709 |
| 1 | PI 303317 | V-64-54 | Heuchera sp. | Arizona, United States | | | Historic | 1964 | COLLECTED | | | | 1896 | | | | 1680524 | PI 303317 |
| 2 | PI 303326 | V-63-31 | Heuchera sp. | Nebraska, United States | | | Historic | 1964 | COLLECTED | | | | | | | | 1680539 | PI 303326 |
| 3 | PI 95426 | | Heuchera glabra Willd. | Alaska, United States | | | Historic | 1931 | COLLECTED | | Sitkalidak Island | | | | | | 1781750 | PI 95426 |
| 4 | PI 66292 | | Heuchera sanguinea Engelm. | England, United Kingdom | | | Historic | 1926 | COLLECTED | | | | | | | | 1717909 | PI 66292 |
| 5 | Ames 36212 | Kirchner Prairie | Heuchera richardsonii R. Br. | Iowa, United States | NC7 | | Not Available | 2023 | COLLECTED | 08/11/2023 | Kirchner Prairie located 5.60 miles east and 4.10 miles north of Spencer, T97N R35W SW 1/4 Sec. 19. | 43.20514400, -95.02902600 | 415 | Prairie remnant. Upland prairie near a wet slough. Currently grazed with livestock (minor stocking rate). | Wild material | Plants noted in nature as having variable flowering heights and basal leaf sizes. | 2165630 | Ames 36212 |
| 6 | Ames 36213 | Cayler Prairie | Heuchera richardsonii R. Br. | Iowa, United States | NC7 |  | Not Available | 2023 | COLLECTED | 07/28/2023 | Cayler Prairie State Preserve located approximately 7.25 miles west, southwest of Spirit Lake, T99N R37W NW 1/4 Sec. 17. | 43.39862000, -95.24324300 | 434 | Prairie remant, mesic near wetland. | Wild material | | 2165631 | Ames 36213 |
| 7 | OPGC 8852 | AS/HL/2023/044/254 | Heuchera longiflora Rydb. | Kentucky, United States | OPGC |  | Not Available | 2023 | COLLECTED | 08/08/2023 | Located along Clack Mountain East Road just 1.0 mile east of intersection with highway 519 | 38.12636200, -83.39659500 | 253 | Localized to west-facing moist slopes with steep (65 degree) slopes and typically associated with or on large rock boulders. | Wild material | Plants flowering in early June and in nature measuring approximately 2.5' in height. | 2158367 | OPGC 8852 |
| 8 | Ames 36149 | Yellow River Drive | Heuchera richardsonii R. Br. | Iowa, United States | NC7 | | Not Available | 2023 | COLLECTED | 07/18/2023 | North, northeast of Postville approximately 4.45 miles along Yellow River Drive just 1.25 miles northeast of intersection with highway 51, T96N R6W SE 1/4 NE 1/4 Sec. 9 | 43.14796500, -91.55063800 | 296 | Roadside woodland edge mix of prairie and trees. | Wild material | | 2158354 | Ames 36149 |
| 9 | Ames 36146 | Rochester Cemetery | Heuchera richardsonii R. Br. | Iowa, United States | NC7 |  | Not Available | 2023 | COLLECTED | 07/14/2023 | Rochester Cemetery approximately 1.20 miles southeast of Rochester, T79N R3W NE ¼ SW ¼ NE ¼ Sec. 12 | 41.66514800, -91.13891100 | 219 | Prairie remnant / oak savanna. | Wild material | | 2158351 | Ames 36146 |
| 10 | OPGC 8760 | MT050-75 | Heuchera richardsonii R. Br. | Montana, United States | OPGC | | | 2023 | | | | | | | Wild material | Flowers are grouped at the top of the stem and are a white to pale yellow color. Stem is red and hairy with no leaves. All leaves are basal. | 2142097 | OPGC 8760 |
| 11 | Ames 35964 | 2022-0899 | Heuchera richardsonii R. Br. | Missouri, United States | NC7 |  | Not Available | 2022 | COLLECTED | 06/13/2022 | Taberville Prairie Conservation Area located 4.5 miles southeast of Rockville, T38N R28W SW 1/4 Sec. 22 | 38.04868000, -93.99934000 | 238 | Mesic grassland. | Wild material | | 2140743 | Ames 35964 |
| 12 | Ames 35906 | Turkey Mounds State Preserve | Heuchera richardsonii R. Br. | Iowa, United States | NC7 | | | 2022 | COLLECTED | 07/30/2022 | Turkey River Mounds State Preserve located 5.50 miles south, southeast of Guttenberg, T91N R2W SE ¼ NE ¼ Sec. 11. | 42.71399000, -91.03844000 | 228 | Narrow ridge with precipitous bluffs rising 250 feet above the Mississippi River floodplain | Wild material | | 2139635 | Ames 35906 |
| 13 | Ames 35886 | Hook Larson Prairie | Heuchera richardsonii R. Br. | Illinois, United States | NC7 |  | | 2022 | COLLECTED | 06/22/2022 | Nachusa Grasslands (Hook Larson Prairie) located approximately 5.07 miles northwest of Franklin Grove just north of West Stone Barn Road, T22N R10E NE 1/4 SE 1/4 NE 1/4 Sec. 17. | 41.89738600, -89.36123100 | 236 | High-quality prairie remnant with thick vegetation managed with infrequent burning. Various small remnants within immediate area. | Wild material | | 2138219 | Ames 35886 |
| 14 | Ames 35882 | Blazing Star Prairie | Heuchera richardsonii R. Br. | Iowa, United States | NC7 |  | | 2022 | COLLECTED | 06/23/2022 | Blazing Star Prairie located 2.00 miles southeast of Rowley, T87N R8W S ¼ NW ¼ NW ¼ Sec. 17. | 42.35383100, -91.81185600 | 286 | Mesic prairie remnant. | Wild material | | 2138181 | Ames 35882 |
| 15 | Ames 35883 | Waterworks Park Prairie | Heuchera richardsonii R. Br. | Iowa, United States | NC7 |  | | 2022 | COLLECTED | 07/05/2022 | Waterworks Park on west side of Bonnifield Lake located 1.00 mile north, northeast of Fairfield, T72N R10W SE ¼ Sec. 24. | 41.02135000, -91.95665000 | 227 | High-quality prairie remnant managed with infrequent burning. Various small remnants within immediate area. | Wild material | | 2138216 | Ames 35883 |
| 16 | Ames 35881 | Reichelt Unit | Heuchera richardsonii R. Br. | Iowa, United States | NC7 |  | | 2022 | COLLECTED | 06/30/2022 | Reichelt Unit of Rock Creek State Park on south side of US highway 6 located 7.70 miles west, southwest of Grinnell, T80N R17W SE ¼ SE ¼ Sec. 30. | 41.70311300, -92.86569100 | 274 | Prairie remnant. Hilltop/knoll. | Wild material | Plants in nature measuring approximately six to eight inches in height with flowering stalks reaching up to three feet in height. | 2138180 | Ames 35881 |
| 17 | NA 86943 | 'Fire Alarm' | Heuchera hybr. | | NA | | Not Available | 2022 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Fire Alarm'. Extra/leftover plants from an exhibit created by the U.S. Botanic Garden, donated to USNA. | 2155054 | NA 86943 |
| 18 | NA 86944 | 'TNHEUNEB' | Heuchera hybr. | | NA | | Not Available | 2022 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'TNHEUNEB' NORTHERN EXPOSURE BLACK (NORTHERN EXPOSURE Series). Extra/leftover plants from an exhibit created by the U.S. Botanic Garden, donated to USNA. | 2155055 | NA 86944 |
| 19 | OPGC 8309 | CBG-10450 | Heuchera richardsonii R. Br. | Wisconsin, United States | OPGC | | | 2021 | | | | | | | Wild material | | 2120089 | OPGC 8309 |
| 20 | Ames 35730 | Root Cellar Remnant | Heuchera richardsonii R. Br. | Iowa, United States | NC7 | _thumbnail.jpg) | | 2021 | COLLECTED | 07/07/2021 | Brushy Creek State Recreation Area located approximately 9.8 miles southwest of Webster City T88N R27W NE1/4 NE1/4 Sec. 28 | 42.41169000, -93.99375000 | 327 | High quality, biologically diverse prairie remnant with a slight northeast-facing slope | Wild material | | 2120334 | Ames 35730 |
| 21 | NA 87557 | (Dale's Strain) | Heuchera americana L. | | NA | | Not Available | 2020 | | | | | | | Uncertain improvement status | One or more plants of this selection were obtained from the annual FONA Plant Sale in or before 2020, and further plants were subsequently propagated from seed collected from that material in 2020. The original was never accessioned and its whereabouts are uncertain. | 2165725 | NA 87557 |
| 22 | OPGC 7572 | JDC/HX/2019/028/907 | Heuchera alba Rydb. | West Virginia, United States | OPGC |  | | 2019 | COLLECTED | 08/10/2019 | Smoke Hole Region: Powers Hollow. Located approximately 5.2 miles west of Petersburg on the east side of Powers Hollow Road, Grant County | 39.00339500, -79.22036500 | 455 | Exposed rock cliff edges. | Wild material | Heuchera alba is a narrow Appalachian endemic and globally imperiled (G2) taxon recorded only from West Virginia and Virginia that occurs in sympatry with H. pubescens and H. americana. According to Scheutte et al. 2018, the range for H. alba is restricted to high elevation acidic sandstone ridges and outcrops in the Ridge-and-Valley province of West Virginia and Virginia. In cultivation (central Iowa) the leaves emerge with subtle variegation that is lost by early summer. Flowers are creamy white to pale green. | 2096627 | OPGC 7572 |
| 23 | OPGC 7464 | CBG-8630 | Heuchera richardsonii R. Br. | Wisconsin, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 2092685 | OPGC 7464 |
| 24 | OPGC 7422 | SOS-CA180-188 | Heuchera micrantha Douglas ex Lindl. | California, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 2091549 | OPGC 7422 |
| 25 | NA 85707 | 'Autumn Bride' | Heuchera villosa Michx. | | NA | | Not Available | 2019 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera villosa 'Autumn Bride'. | 2154336 | NA 85707 |
| 26 | NA 85708 | NA 85708 | Heuchera longiflora Rydb. | | NA | | Not Available | 2019 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Heuchera longiflora. | 2154337 | NA 85708 |
| 27 | OPGC 6519 | NV030-1266 | Heuchera rubescens Torr. | Nevada, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | | 1964495 | OPGC 6519 |
| 28 | NA 85105 | 'Caramel' | Heuchera hybr. | | NA | | Not Available | 2018 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Caramel'. | 2154037 | NA 85105 |
| 29 | OPGC 6387 | CBG-6659 | Heuchera americana L. | Illinois, United States | OPGC |  | | 2017 | | | | | | | Wild material | | 1954813 | OPGC 6387 |
| 30 | OPGC 5464 | OR110-909 | Heuchera micrantha Douglas ex Lindl. var. diversifolia (Rydb.) Rosend. et al. | Oregon, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1949836 | OPGC 5464 |
| 31 | OPGC 5456 | OR110-898 | Heuchera micrantha Douglas ex Lindl. | Oregon, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1948823 | OPGC 5456 |
| 32 | NA 83753 | 'Autumn Bride' | Heuchera villosa Michx. | | NA | | Not Available | 2016 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera villosa 'Autumn Bride'. Obtained for the Friendship Garden renovation. | 2153361 | NA 83753 |
| 33 | NA 83214 | NA 83214 | Heuchera longiflora Rydb. | | NA | | Not Available | 2016 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Heuchera longiflora. Obtained for the Friendship Garden renovation. [In 2018, this accession was supplemented with 96 additional plants from the same source, planted together with the existing mass. -SBL] | 2153305 | NA 83214 |
| 34 | OPGC 5393 | AK930-415 | Heuchera glabra Willd. | Alaska, United States | OPGC | | Not Available | 2016 | | | | | | | Wild material | | 1932602 | OPGC 5393 |
| 35 | OPGC 5022 | MT060-40 | Heuchera cylindrica Douglas var. glabella (Torr. & A. Gray) Wheelock | Montana, United States | OPGC |  | | 2015 | COLLECTED | 07/29/2014 | | | 1630 | | Wild material | | 1926732 | OPGC 5022 |
| 36 | OPGC 5000 | CBG-2453 | Heuchera richardsonii R. Br. | Illinois, United States | OPGC |  | Not Available | 2015 | COLLECTED | 07/01/2013 | Shoal Creek Conservation Area located approximately 3.5 miles northeast of Litchfield, T9N R5W NW 1/4 Sec. 25 | 39.19722200, -89.59900000 | 185 | Steep lakeside banks on 45 degree southwest-facing slope. | Wild material | | 1925998 | OPGC 5000 |
| 37 | OPGC 4911 | HEMI7-SOS-OR110-417-JACKSON-12 | Heuchera micrantha Douglas ex Lindl. | Oregon, United States | OPGC |  | Not Available | 2014 | COLLECTED | 2012 | | | | | Wild material | | 1920617 | OPGC 4911 |
| 38 | OPGC 4699 | HEMI7-SOS-OR931-65-11 | Heuchera micrantha Douglas ex Lindl. | Oregon, United States | OPGC |  | Not Available | 2012 | COLLECTED | 2011 | | | | | Wild material | | 1905051 | OPGC 4699 |
| 39 | NA 80386 | NA 80386 | Heuchera richardsonii R. Br. | South Dakota, United States | NA | | Not Available | 2010 | COLLECTED | 08/03/2010 | Custer State Park, SD Hwy. 87 south of Blue Bell Lodge | 43.65008000, -103.46180000 | 1364 | Grassy meadow under Pinus ponderosa | | | 1952830 | NA 80386 |
| 40 | OPGC 4443 | HEMI7-SOS-OR930-RC65-09 | Heuchera micrantha Douglas ex Lindl. | Washington, United States | OPGC |  | Not Available | 2010 | COLLECTED | NEAR 2009 | | | | . | Wild material | | 1842517 | OPGC 4443 |
| 41 | OPGC 4422 | 412834 | Heuchera micrantha Douglas ex Lindl. | Washington, United States | OPGC |  | Not Available | 2009 | COLLECTED | 07/06/2007 | | | 15 | Rock outcrops & rocky slopes. Associated with common species Sedum spathulifolium, Polypodium glycyrrhiza, Cladina rangiferina, Aira caryophyllea, other species Hypochaeris radicata, Rosa gymnocarpa, Stipa sp., Mahonia aquifolium etc. | Wild material | | 1826920 | OPGC 4422 |
| 42 | NA 78924 | NA 78924 | Heuchera longiflora Rydb. | | NA | | Not Available | 2009 | | | | | | | Wild material | Full name as recorded at U.S. National Arboretum: Heuchera longiflora. Reidentified later by the curator as H. longiflora. | 2151516 | NA 78924 |
| 43 | NA 78937 | NA 78937 | Heuchera villosa Michx. | Kentucky, United States | NA | | Not Available | 2009 | COLLECTED | 10/22/2009 | Daniel Boone National Forest; Hwy. 52 near Tipton Ridge Quarry entrance, near piped spring. | 37.70885000, -83.89345000 | 334 | Base of limestone wall, north facing. | | | 1951346 | NA 78937 |
| 44 | OPGC 4398 | ID320-82 | Heuchera cylindrica Douglas var. glabella (Torr. & A. Gray) Wheelock | Idaho, United States | OPGC |  | | 2009 | COLLECTED | 07/07/2005 | | | | Middle Rockies - Blue Mountain, Toe slope of mountain, Basalt and granite,, Silt soil, Aspect:W | Wild material | | 1798484 | OPGC 4398 |
| 45 | OPGC 4399 | ID75-49 | Heuchera parvifolia Nutt. var. utahensis (Rydb.) Garrett | Idaho, United States | OPGC |  | Not Available | 2009 | COLLECTED | 07/20/2004 | | | | Columbia Plateau, mountainous, basalt, rocky volcanic soil, brown clay soil, Aspect:north | Wild material | | 1798485 | OPGC 4399 |
| 46 | NA 78128 | 'Green Spice' | Heuchera americana L. | | NA | | Not Available | 2009 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera americana 'Green Spice'. | 2151253 | NA 78128 |
| 47 | OPGC 4376 | HEM17-SOSOR-930-RC21-06 | Heuchera micrantha Douglas ex Lindl. | Washington, United States | OPGC |  | Not Available | 2007 | COLLECTED | PRE 10/26/2007 | | | | | Wild material | | 1740423 | OPGC 4376 |
| 48 | NA 76324 | 'Caramel' | Heuchera hybr. | | NA | | Not Available | 2007 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Caramel'. | 2150667 | NA 76324 |
| 49 | NA 76306 | 'Caramel' | Heuchera hybr. | | NA | | Not Available | 2007 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Caramel'. | 2150656 | NA 76306 |
| 50 | NA 76307 | 'Citronelle' | Heuchera hybr. | | NA | | Not Available | 2007 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Citronelle'. | 2150657 | NA 76307 |
| 51 | NA 76261 | 'Purple Mountain Majesty' | Heuchera hybr. | | NA | | Not Available | 2007 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Purple Mountain Majesty'. | 2150634 | NA 76261 |
| 52 | OPGC 4325 | 227432 | Heuchera pilosissima Fisch. & C. A. Mey. | California, United States | OPGC |  | Not Available | 2007 | COLLECTED | 07/14/2004 | | | 15 | | Wild material | | 1719193 | OPGC 4325 |
| 53 | OPGC 4326 | 227487 | Heuchera parvifolia Nutt. | Utah, United States | OPGC |  | Not Available | 2007 | COLLECTED | 07/01/2004 | | | 1695 | | Wild material | | 1719195 | OPGC 4326 |
| 54 | OPGC 4327 | 227498 | Heuchera rubescens Torr. | Utah, United States | OPGC |  | Not Available | 2007 | COLLECTED | 07/08/2004 | | | 2041 | | Wild material | | 1719196 | OPGC 4327 |
| 55 | NA 76111 | 'Cappuccino' | Heuchera hybr. | | NA | | Not Available | 2006 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Cappuccino'. | 2150592 | NA 76111 |
| 56 | NA 75207 | 'Plum Pudding' | Heuchera hybr. | | NA | | Not Available | 2006 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Plum Pudding'. | 2150303 | NA 75207 |
| 57 | OPGC 4292 | 198341 | Heuchera cylindrica Douglas | Washington, United States | OPGC |  | | 2005 | COLLECTED | 07/28/2003 | | | 640 | Associated with Artemisia tripartita, Festuca idahoensis, Pseudoroegneria spicata, Artemisia tridentata, Amelanchier alniflolia, Rosa woodsii, Prunus virginiana, Lomatium dissectum, Lupinus sericeus, Gaillardia aristata and S | Wild material | Forb 0.6 meters tall. | 1674223 | OPGC 4292 |
| 58 | NA 71667 | 'Palace Purple' | Heuchera villosa Michx. | | NA | | Not Available | 2002 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera villosa 'Palace Purple'. | 2149061 | NA 71667 |
| 59 | NA 73226 | NA 73226 | Heuchera longiflora Rydb. | | NA | | Not Available | 1998 | | | | | | | Wild material | Full name as recorded at U.S. National Arboretum: Heuchera longiflora. Collected during the same one- or two-day expedition as NA 69478 through 69484. From Joan Feely: "Wild collected in Cocke Co. Tennessee. Details may or may not be forthcoming. No germplasm-group plants [woody target genera by WLPGR staff] were collected at this site, so my (JWF) notes are not complete." | 2149545 | NA 73226 |
| 60 | NA 75199 | NA 75199 | Heuchera villosa Michx. | Tennessee, United States | NA | | Not Available | 1998 | COLLECTED | 11/1998 | | | | Steep, rocky slope above stream. | | | 1952917 | NA 75199 |
| 61 | NA 63729 | NA 63729 | Heuchera americana L. | | NA | | Not Available | 1992 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Heuchera americana. | 2147192 | NA 63729 |
| 62 | NA 61030 | 'Chatterbox' | Heuchera hybr. | | NA | | Not Available | 1989 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Chatterbox'. | 2146753 | NA 61030 |
| 63 | NA 84834 | 'Palace Purple' | Heuchera villosa Michx. | | NA | | Not Available | 1989 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera villosa 'Palace Purple'. This accession was formerly NA 61205, received in 1989 from Andre Viette Nursery; material from Behnke Nurseries was added in 1991 without being accessioned, and there were signs in the record of possible later additions from Babikow Greenhouses (possibly in 1995). It seems safest to reaccession with mixed sources. The accession date reflects the earliest year that any material in this accession might have been received. | 2153804 | NA 84834 |
| 64 | NA 62086 | NA 62086 | Heuchera americana L. | | NA | | Not Available | 1987 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Heuchera americana. | 2146894 | NA 62086 |
| 65 | NA 62087 | NA 62087 | Heuchera villosa Michx. | | NA | | Not Available | 1987 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Heuchera villosa. | 2146895 | NA 62087 |
| 66 | NA 56886 | NA 56886 | Heuchera americana L. | | NA | | Not Available | 1986 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Heuchera americana. | 2146271 | NA 56886 |
| 67 | NA 52939 | NA 52939 | Heuchera villosa Michx. | | NA | | Not Available | 1984 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Heuchera villosa. | 2145722 | NA 52939 |
| 68 | NA 52811 | 'Pluie de Feu' | Heuchera hybr. | | NA | | Not Available | 1984 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera 'Pluie de Feu'. | 2145715 | NA 52811 |
| 69 | NA 47295 | NA 47295 | Heuchera americana L. | | NA | | Not Available | 1981 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Heuchera americana. | 2145336 | NA 47295 |
| 70 | NA 26259 | 'Rosamunde' | Heuchera ×brizoides hort. ex Lemoine | | NA | | Not Available | 1964 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Heuchera x brizoides 'Rosamunde'. | 2144023 | NA 26259 |