| 0 | Ames 36692 | Benton County RR | Echinacea simulata McGregor | Indiana, United States | NC7 |  | | 2025 | COLLECTED | 08/21/2025 | Located 2.65 miles northwest of Fowler just southeast of intersections of state highways 41 and 52, T25N R8W NE ¼ Sec. 6, SW ¼ Sec. 5, and NE ¼ Sec. 8. | 40.64885300, -87.36833100 | 248 | Railroad right-of-way. | Wild material | Specimens at collection site in nature with drooping, pink to rose colored rays measuring 6.0 mm in width and 35.00 mm in length with bright yellow pollen. Plants measuring approximately 20-36" in height. | 2192779 | Ames 36692 |
| 1 | OPGC 8804 | CBG- 10757 | Minuartia michauxii (Fenzl) Farw. | Illinois, United States | OPGC | | | 2023 | | | | | | | Wild material | | 2142227 | OPGC 8804 |
| 2 | OPGC 8809 | CBG- 10771 | Silene stellata W. T. Aiton | Illinois, United States | OPGC | | | 2023 | | | | | | | Wild material | | 2142239 | OPGC 8809 |
| 3 | W6 61352 | CBG- 10764 | Sisyrinchium campestre E. P. Bicknell | South Dakota, United States | W6 |  | | 2023 | | | | | | | Wild material | | 2142234 | W6 61352 |
| 4 | W6 61370 | CBG- 10788 | Drymocallis arguta (Pursh) Rydb. | Wisconsin, United States | W6 |  | | 2023 | | | | | | | Wild material | | 2142252 | W6 61370 |
| 5 | OPGC 7589 | Wolter's Prairie | Pedicularis canadensis L. | Iowa, United States | OPGC | | | 2022 | COLLECTED | 06/09/2022 | Wolter's Prairie located 2.50 miles southwest of Clarksville, T92N R16W NE ¼ Sec. 22. | 42.76999700, -92.71262800 | 300 | Remnant wet prairie. | Wild material | | 2139695 | OPGC 7589 |
| 6 | OPGC 8701 | OPGC 8701 | Collinsia parviflora Lindl. | Idaho, United States | OPGC |  | | 2022 | | | | | | | Wild material | | 2139402 | OPGC 8701 |
| 7 | OPGC 8635 | CP3-195 | Mentzelia albicaulis (Douglas) Douglas ex Torr. & A. Gray | Utah, United States | OPGC |  | | 2022 | | | | | | | Wild material | yellow flowers | 2138452 | OPGC 8635 |
| 8 | OPGC 8444 | WY070-96 | Ratibida columnifera (Nutt.) Wooton & Standl. | Wyoming, United States | OPGC | | | 2021 | | | | | | | Wild material | Clumping aster with drooping, wide, bright yellow (occasionally red and yellow) ray flowers around a cylindrical cone. Leaves deeply divided. | 2120868 | OPGC 8444 |
| 9 | W6 59654 | UT020-96 | Leymus cinereus (Scribn. & Merr.) Á. Löve | Utah, United States | W6 | | | 2021 | | | | | | | Wild material | Perennial bunchgrass forming tall, sprawling clumps with numerous inflorescences. Plant height averaged 4.58 ft, with plants scattered alongside Clear Creek Rd in relatively flat, open sites. The effects of grazing here were minimal this season, so most plants were neither chewed down nor trampled upon. Rather than forming dense clusters, most of the plants here were scattered far from one another amidst other tall grasses, shrubs, and forbs. Since the riparian zone here is heavily forested, most Leymus cinereus individuals were relatively far from the creek, compared with other sites where we've collected. | 2120819 | W6 59654 |
| 10 | W6 59683 | WY050-229 | Balsamorhiza incana Nutt. | Wyoming, United States | W6 | | | 2021 | | | | | | | Wild material | Yellow flowers with deeply lobed leaves. | 2120848 | W6 59683 |
| 11 | W6 59689 | WY070-81 | Koeleria macrantha (Ledeb.) Schult. | Wyoming, United States | W6 | | | 2021 | | | | | | | Wild material | Growing in tufts of culms and leaves. Culm terminates in a panicle approx. 2-6†long, light green, and maturing to a golden color. Leaf blades involute, approx. 6†long. | 2120854 | W6 59689 |
| 12 | W6 59690 | WY070-82 | Koeleria macrantha (Ledeb.) Schult. | Wyoming, United States | W6 | | | 2021 | | | | | | | Wild material | Growing in tufts of culms and leaves. Culm terminates in a panicle approx. 2-6†long, light green, and maturing to a golden color. Leaf blades involute, approx. 6†long. û | 2120855 | W6 59690 |
| 13 | W6 60356 | CBG-10736 | Houstonia longifolia Gaertn. | | W6 |  | | 2021 | | | | | | | Wild material | | 2137988 | W6 60356 |
| 14 | OPGC 8278 | CBG-9870 | Lobelia spicata Lam. | Wisconsin, United States | OPGC | | | 2021 | | | | | | | Wild material | | 2120028 | OPGC 8278 |
| 15 | OPGC 8308 | CBG-10449 | Krigia biflora (Walter) S. F. Blake | Wisconsin, United States | OPGC | | | 2021 | | | | | | | Wild material | | 2120088 | OPGC 8308 |
| 16 | OPGC 8309 | CBG-10450 | Heuchera richardsonii R. Br. | Wisconsin, United States | OPGC | | | 2021 | | | | | | | Wild material | | 2120089 | OPGC 8309 |
| 17 | OPGC 8348 | CBG-10581 | Hieracium scabrum Michx. | Illinois, United States | OPGC | | | 2021 | | | | | | | Wild material | Plant numbers sampled estimated. | 2120172 | OPGC 8348 |
| 18 | W6 57944 | ID931-404 | Festuca idahoensis Elmer | Idaho, United States | W6 | | | 2020 | | | | | | | Wild material | Height: 1-2' | 2106459 | W6 57944 |
| 19 | OPGC 7863 | NV040-322 | Packera multilobata (Torr. & A. Gray) W. A. Weber & Á. Löve | Nevada, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 2094574 | OPGC 7863 |
| 20 | W6 56787 | NV040-342 | Hymenoxys lemmonii (Greene) Cockerell | Nevada, United States | W6 |  | | 2019 | | | | | | | Wild material | | 2094593 | W6 56787 |
| 21 | OPGC 7460 | CBG-8191 | Pedicularis canadensis L. | Wisconsin, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 2092673 | OPGC 7460 |
| 22 | W6 56610 | CBG-8799 | Bromus kalmii A. Gray | Wisconsin, United States | W6 |  | | 2019 | | | | | | | Wild material | | 2092709 | W6 56610 |
| 23 | 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 |
| 24 | 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 |
| 25 | 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 |
| 26 | OPGC 6387 | CBG-6659 | Heuchera americana L. | Illinois, United States | OPGC |  | | 2017 | | | | | | | Wild material | | 1954813 | OPGC 6387 |
| 27 | W6 53011 | CBG-7047 | Astragalus bisulcatus (Hook.) A. Gray | Colorado, United States | W6 |  | | 2017 | | | | | | | Wild material | | 1954762 | W6 53011 |
| 28 | W6 53069 | CBG-7043 | Koeleria macrantha (Ledeb.) Schult. | Colorado, United States | W6 |  | | 2017 | | | | | | | Wild material | | 1954820 | W6 53069 |
| 29 | W6 53126 | CBG-6895 | Sphenopholis obtusata (Michx.) Scribn. | Illinois, United States | W6 |  | | 2017 | | | | | | | Wild material | | 1954877 | W6 53126 |
| 30 | W6 53135 | CBG-7045 | Townsendia grandiflora Nutt. | Colorado, United States | W6 |  | | 2017 | | | | | | | Wild material | Townsendia grandiflora | 1954886 | W6 53135 |
| 31 | Ames 33972 | Ames 33972 | Polytaenia nuttallii DC. | Iowa, United States | NC7 |  | | 2017 | COLLECTED | 07/28/2017 | 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. Dry, rocky habitat. | Wild material | A monocarpic perennial. | 1950055 | Ames 33972 |
| 32 | OPGC 5077 | OPGC 5077 | Phlox pilosa L. subsp. fulgida (Wherry) Wherry | Iowa, United States | OPGC | | | 2017 | COLLECTED | 06/28/2017 | 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. Dry, rocky habitat. Growing in association with Ceanothus herbaceous, Asclepias tuberosa, Bromus inermis, Dalea purpurea, Dalea candida, Sporobolus heterolepis, Hesperostipa spartea, Zizia aurea, Amorpha canescens, Polytaenia nuttallii, sisyrinchium angustifolium, Tradescantia bracteata, Liatris squarrosa, Astragulus canadensis, Asclepias viridis, Schizachyrium scoparium, Andropogon gerardii, Comandra umbellata, Lespedeza capitata, Viola pedatifida, Anemone cylindrica, Euphorbia corollata, Oligoneruon rigidum, and Lilium philadelphicum. | Wild material | | 1950054 | OPGC 5077 |
| 33 | OPGC 5074 | JDC/PP/2017/017/771 | Phlox pilosa L. subsp. fulgida (Wherry) Wherry | Iowa, United States | OPGC | | | 2017 | COLLECTED | 06/23/2017 | Private property approximately 2.6 miles east, northeast of Polk City, T81N R24W NW ¼ SE ¼ Sec. 32. | 41.78088600, -93.66458200 | 300 | Native remnant, extremely high-quality hay prairie (circa 40 acres) with diverse soil types (classic swell and swale topography) with both pothole marsh and mesic prairie areas that has been in family name since mid 1800’s. Never been plowed. Extremely biologically diverse, seasonally wet prairie. Growing in association with Eryngium yuccafolium, Monarda fistulosa, Asclepias tuberosa (common), Asclepias sullivantii (rare), Asclepias syriaca, Asclepias incarnata, Zizia aurea, Coreopsis palmata, Baptisia bracteata (common), Thalictrum dasycarpum (common), Rosa sp., Carex haydenii, Carex sartwellii, Echinacea pallida, Lithospermum canescens, Cirsium pumilum var. hillii (circa 12 plants noted), Lilium philadelphicum (circa 12 plants noted), Polytaenia nuttallii (rare), Helianthus spp., Comandra umbelata, Silphium laciniatum (common), Iris virginica, Heliopsis helianthoides, Achillea millefolium, Cicuta maculata, Stachys palustris, Hesperostipa spartea, Liatris aspera, Liatris pycnostachya, Pedicularis lanceolata, Hyposix hirsuta, Arnoglossum atriplicifolium, and Ceanothus herbaceous. Species actively blooming on 25 May 2017 included: P. pilosa, C. herbaceous, Z. aurea, C. umbellata, and L. canescens. Species actively bloomin on 23 June 2017 included: A. tuberosa, A. syriaca, A. incarnata, C. palmata, C. maculata, L. philadelphicum, C. pumilum var. hillii, S. palustris, E. pallida, H. helianthoides, and A. millefolium. | Wild material | Flower color for population is all purple. | 1950049 | OPGC 5074 |
| 34 | W6 50246 | ID931-405 | Koeleria macrantha (Ledeb.) Schult. | Idaho, United States | W6 |  | | 2015 | | | | | | | Wild material | | 1927550 | W6 50246 |
| 35 | W6 50305 | ID931-410 | Pseudoroegneria spicata (Pursh) Á. Löve | Idaho, United States | W6 |  | | 2015 | | | | | | | Wild material | | 1927605 | W6 50305 |
| 36 | W6 49909 | CP2-71 | Festuca octoflora Walter | Utah, United States | W6 |  | | 2015 | | | | | | | Wild material | | 1926934 | W6 49909 |
| 37 | W6 49550 | CBG-2497 | Allium textile A. Nelson & J. F. Macbr. | Colorado, United States | W6 |  | | 2015 | | | | | | | Wild material | | 1926023 | W6 49550 |
| 38 | W6 35296 | WY030-14 | Artemisia tridentata Nutt. subsp. vaseyana (Rydb.) Beetle | United States | W6 |  | | 2009 | | | | | | | Wild material | | 1802272 | W6 35296 |