| 0 | Ames 35806 | Reichelt Prairie | Salix humilis Marshall var. tristis (Aiton) Griggs | Iowa, United States | NC7 |  | | 2022 | COLLECTED | 05/16/2022 | Reichelt Unit of Rock Creek State Park on south side of US highway 6 approximately 7.70 miles west, southwest of Grinnell, T80N R17W SE ¼ SE ¼ Sec. 30. | 41.70311300, -92.86569100 | 274 | Xeric prairie remnant. Hilltop/knoll. | Wild material | Plants sampled in nature measuring 2.0-4.0 feet in height. Specimens noted during peak flowering and seed dispersal on 21 April and 17 May (2022), respectively. Some plants upright and some rather prostrate. Site was mowed in winter 2020/2021 winter resulting in significant flowering in 2022. In cultivation (central Iowa), plants are extremely short and compact where after two field seasons plants are rather uniform and topping out at a height of 2.5'. Dense suckering immediately surrounding clump/base of plant. Peak fall color (central Iowa) occurring in mid-November. | 2137912 | Ames 35806 |
| 1 | Ames 34200 | Ellsworth Clear LakeTownship Cemetery | Salix humilis Marshall var. tristis (Aiton) Griggs | Iowa, United States | NC7 |  | | 2018 | COLLECTED | 05/17/2018 | Ellsworth Clear Lake Township Cemetery located approximately 4.68 miles west, southwest of Randall just east of Olsen Ave., off 390th Street, T86N R24W NW ¼ SE ¼ SW ¼ Sec. 30. | 42.22720200, -93.69239400 | 325 | Dry ridge top. Remnant prairie | Wild material | Specimens at collection site in nature measuring approximately 2.5 feet in height with significant suckering and minimal branching. Stem color (variable) at time of collection (17 May 2018) with mostly dark yellow, greenish or brownish-orange. Female catkins measuring 1.25-2.00 cm. Pubescent leaves, rounded at tips. Plants with severe dieback (e.g. 1-2' on stems), but are respouting. Unknown if dieback at collection site is due to herbicide or environmental conditions. According to local botanist and author of the Vascular Flora of Hamilton County, Iowa (Thompson 2007), Thompson indicated this was the largest population observed (Thompson pers. comm., 16 May 2018) in Hamilton County. During a growout via seed executed in 2018 at NCRPIS, a total of 64 plants generated 19 males and 45 females. | 1963307 | Ames 34200 |
| 2 | PI 675216 | R10-02-006 | Phleum phleoides (L.) H. Karst. | Stavropol, Russian Federation | W6 |  | | 2011 | COLLECTED | 07/17/2010 | 10 km NW of Stavropol | 45.11500000, 41.86900000 | 520 | Stony steppe surrounded by forest (Quercus robur, Q. calcarea, Fraxinus exelsior): moderate depth soils. Black A horizon, weathered limestone parent material: hay meadows: : seed collected from >100 plants | Wild material | | 1883108 | PI 675216 |
| 3 | PI 676154 | R10-02-007 | Brachypodium rupestre (Host) Roem. & Schult. | Stavropol, Russian Federation | W6 | | | 2011 | COLLECTED | 07/17/2010 | 10 km NW of Stavropol | 45.11500000, 41.86900000 | 520 | Stony steppe surrounded by forest (Quercus robur, Q. calcarea, Fraxinus exelsior): moderate depth soils. Black A horizon, weathered limestone parent material: hay meadows: : seed collected from >100 plants | Wild material | | 1883109 | PI 676154 |
| 4 | PI 678469 | R10-02-008 | Lolium perenne L. | Stavropol, Russian Federation | W6 |  | | 2011 | COLLECTED | 07/17/2010 | 10 km NW of Stavropol | 45.11500000, 41.86900000 | 520 | Stony steppe surrounded by forest (Quercus robur, Q. calcarea, Fraxinus exelsior): moderate depth soils. Black A horizon, weathered limestone parent material: hay meadows: : seed collected from >100 plants | Wild material | | 1883110 | PI 678469 |
| 5 | W6 62513 | FWS0300-102 | Sorghastrum nutans (L.) Nash | Michigan, United States | W6 |  | | 2025 | | | | | | | Wild material | Near active artillery range | 2192211 | W6 62513 |
| 6 | Ames 36248 | Robert's Creek | Salix bebbiana Sarg. | Iowa, United States | NC7 |  | | 2024 | COLLECTED | 05/15/2024 | Robert’s Creek Preserve just north of Forest Road approximately 4.2 miles north, northeast of Elkader, T94N R5W near center of Sec. 36. | 42.91366500, -91.37990600 | 260 | Mixed hardwood forest. Very steep, moist, north-facing slope. | Wild material | Bebb's willow, Salix bebbiana, is a tight, clump forming, multi-stemmed shrub that can reach up to 25' in height that forms a rather distinct, mounded growth habit. Native to North America, the native range covers mostly Canada, but extending south into the northeastern US and also the Rocky Mountains range stretching as far south as New Mexico and Arizona (Little, E. L. Jr. 1977). In Iowa, this species seems to only be known from northeastern Iowa. Salix bebbiana can be found in a variety of habitats from pond margins/swamps to even moderately well-drained open fields. The female capsules are long (5-9 mm) with a very slender beak held on the longest stalk of any N. American Salix. This accession represents genetics from northeastern Iowa at the southern edge of its range in northeastern N. America. Specimens sampled were estimated at 30' in height. Some of the oldest, largest specimens sampled measuring approximately 8" DBH were showing signs of decline. Immature leaves are reddish or yellow green and rather rugose. | 2167645 | Ames 36248 |
| 7 | 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 |
| 8 | Ames 35668 | Iroquois County Conservation Area | Aronia ×prunifolia (Marshall) Rehder | Illinois, United States | NC7 |  | | 2021 | COLLECTED | 05/05/2021 | Iroquois County Conservation Area located approximately 4.5 miles northeast of Beaverville in Beaverville Township, T29N R11W NE1/4 Sec. 22 | 40.99154700, -87.58073200 | 198 | Woodland edge of wet sand prairie | Wild material | Wide variety of genotypes noted in nature averaging 3.5-7' in height. Some growing in shade of oak forest were sparse suckering and open branching compared to open grown specimens that were extremely dense with suckers. | 2115977 | Ames 35668 |
| 9 | Ames 34341 | Sheeder Prairie | Drymocallis arguta (Pursh) Rydb. | Iowa, United States | NC7 |  | | 2018 | COLLECTED | 09/06/2018 | Sheeder Prairie State Preserve located approximately 4.45 miles west, northwest of Guthrie Center, T80N R32W SW 1/4 SW 1/4 Sec. 33, Guthrie County | 41.68949600, -94.58847900 | 366 | High-quality native prairie remnant. | Wild material | | 1967543 | Ames 34341 |
| 10 | Ames 34342 | Sheeder | Echinacea pallida (Nutt.) Nutt. | Iowa, United States | NC7 |  | | 2018 | COLLECTED | 09/06/2018 | Sheeder Prairie State Preserve located approximately 4.45 miles west, northwest of Guthrie Center, T80N R32W SW 1/4 SW 1/4 Sec. 33 | 41.68949600, -94.58847900 | 366 | High-quality native prairie remnant. | Wild material | | 1967544 | Ames 34342 |
| 11 | Ames 34343 | Sheeder | Monarda fistulosa L. | Iowa, United States | NC7 |  | | 2018 | COLLECTED | 09/06/2018 | Sheeder Prairie State Preserve located approximately 4.45 miles west, northwest of Guthrie Center, T80N R32W SW 1/4 SW 1/4 Sec. 33 | 41.68949600, -94.58847900 | 366 | High-quality native prairie remnant. | Wild material | | 1967545 | Ames 34343 |