| 0 | PI 421379 | 'MIDAS' | Heliopsis helianthoides (L.) Sweet | Kansas, United States | NC7 | | Not Available | 1977 | COLLECTED | PRE 11/30/1977 | Greenwood County. | | | | Cultivar | | 1552761 | PI 421379 |
| 1 | PI 193013 | | Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald | Netherlands | NC7 | | Not Available | 1950 | COLLECTED | | | | | | | Seeds presented by Botanic Garden, Amsterdam. Rc'd 10/20/50 Seeds presented by Pioneers' Park, Nebraska. Rc'd 10/23/50 Record created on 7/12/90. | 1164378 | PI 193013 |
| 2 | PI 188462 | No. 35 | Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald | Kansas, United States | | | Historic | 1950 | COLLECTED | 09/1949 | | | | | | | 1668414 | PI 188462 |
| 3 | PI 188463 | No. 575 | Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald | Oklahoma, United States | | | Historic | 1950 | COLLECTED | 09/1949 | | | | | | | 1668415 | PI 188463 |
| 4 | PI 186935 | No. 49202 | Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald | Nebraska, United States | | | Historic | 1950 | COLLECTED | 08/28/1949 | | | | | | | 1667959 | PI 186935 |
| 5 | PI 186936 | No. 49205 | Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald | Nebraska, United States | | | Historic | 1950 | COLLECTED | 08/28/1949 | | | | | | | 1667960 | PI 186936 |
| 6 | PI 186937 | No. 49206 | Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald | Nebraska, United States | | | Historic | 1950 | COLLECTED | 09/28/1949 | | | | | | | 1667961 | PI 186937 |
| 7 | PI 186938 | | Heliopsis helianthoides (L.) Sweet var. scabra (Dunal) Fernald | | | | Historic | 1950 | | | | | | | | | 1667962 | PI 186938 |
| 8 | NA 88883 | 'Bit of Honey' | Heliopsis helianthoides (L.) Sweet | Michigan, United States | NA | | Not Available | 2024 | DEVELOPED | PRE 03/2024 | | | | | Cultivar | Full name as recorded at the U.S. National Arboretum: Heliopsis helianthoides 'Bit of Honey' | 2190945 | NA 88883 |
| 9 | NA 88891 | 'Touch of Blush' | Heliopsis helianthoides (L.) Sweet | Michigan, United States | NA | | Not Available | 2024 | DEVELOPED | PRE 03/2024 | | | | | Cultivar | Full name as recorded at the U.S. National Arboretum: Heliopsis helianthoides 'Touch of Blush' | 2190953 | NA 88891 |
| 10 | W6 56624 | CBG-8941 | Heliopsis helianthoides (L.) Sweet | Iowa, United States | W6 |  | Not Available | 2019 | | | | | | | Wild material | | 2092723 | W6 56624 |
| 11 | W6 56633 | CBG-8950 | Heliopsis helianthoides (L.) Sweet | South Dakota, United States | W6 |  | | 2019 | | | | | | | Wild material | | 2092732 | W6 56633 |
| 12 | W6 46027 | CBG-1853 | Heliopsis helianthoides (L.) Sweet | Illinois, United States | W6 |  | Not Available | 2013 | | | | | | | Wild material | | 1908874 | W6 46027 |
| 13 | Ames 28256 | GC 10 | Heliopsis helianthoides (L.) Sweet | Ohio, United States | NC7 | | Not Available | 2005 | COLLECTED | 09/21/2005 | Green Camp Railroad Prairie, Marion County. | 40.54833333, -83.19138889 | 284 | | Wild material | | 1691058 | Ames 28256 |
| 14 | Ames 27807 | 'Southern Iowa Germplasm' | Heliopsis helianthoides (L.) Sweet | Missouri, United States | NC7 | | | 2005 | DEVELOPED | 2004 | | | | | Cultivar | Erect perennial, 0.4-2 meters tall, arising from a short rhizome. Leaf blades ovate to lanceolate, 4-14 cm long and 1.5-8 cm wide, the apex acute, the margins coarsely serrate, both surfaces covered with rough, siliceous-based hairs or sometimes only slightly rough. Flowers mostly 3-7 cm across on stout naked penduncles, rays dark rich yellow 1-3 cm long, bisexual. The range encompasses the eastern one half of the United States, but its occurrence is not common. Averages 139,000 seeds per pound. A seeding rate of 40 pure live seeds (PLS) in 30 inch rows for seed production is sufficient. Rates for solid seed should be (15 to 25 bulk pounds/acre). Seed should be planted 1/4 to 1/2 inch deep in a firm relatively weed free seedbed. Seedling vigor is good and stands are comparatively easy to establish where competition is controlled. Mowing above its height has been used to reduce competition when weeds begin to severely encroach into the planting. This procedure is probably the best way to control unwanted weed invasion. Seed yields are good and can be readily harvested with a combine. Yields of 250 to 400 pounds per acre have been commonly harvested on managed non-irrigated stands. For isolation requirements, it is considered cross-pollinated. Adapted to soils of a lower fertility level, neutral to mildly acid conditions. Found in open or rocky woods, thickets, prairies, and along railroads. It is found in most counties of the three states served by the Plant Materials Center; Iowa, Illinois, and Missouri. Collections from each zone in Iowa guarantees the adaptaion of releases to the entire zone. The primary purposes of this release are for Iowa roadside revegetation, wildlife plantings, and prairie restoration. | 1685170 | Ames 27807 |
| 15 | Ames 28255 | Darby Plains 8 | Heliopsis helianthoides (L.) Sweet | Ohio, United States | NC7 | | Not Available | 2004 | COLLECTED | 11/01/2004 | Battelle Darby Creek Metropolitan Park, Franklin County. | | | | Wild material | | 1690799 | Ames 28255 |
| 16 | Ames 28252 | SC 6 | Heliopsis helianthoides (L.) Sweet | Ohio, United States | NC7 | | Not Available | 2004 | COLLECTED | 09/30/2004 | West of Columbus on State Route 161, south on Kramer Road, west on Boyd Road, Smith Cemetery State Nature Preserve, Madison County. | 40.10305556, -83.32416667 | | Small prairie remnant in pioneer cemetery; surrounded by farm fields. Full sun. Slight slope, south facing. Fair drainage. Site size 10 square meters; total land area approximately 300 feet x 300 feet. Associated with Andropogon gerardii, Aster laevis, Baptisia australis, Echinacea purpurea, Quercus macrocarpa, Solidago rigida, and other tallgrass prairie plants. | Wild material | 2 inch diameter flower heads. Yellow rays are fertile. Leaves opposite, sharply toothed, rough. Stems smooth. | 1690526 | Ames 28252 |
| 17 | Ames 28253 | SC 7 | Heliopsis helianthoides (L.) Sweet | Ohio, United States | NC7 | | Not Available | 2004 | COLLECTED | 09/30/2004 | West of Columbus on State Route 161, south on Kramer Road, west on Boyd Road, Smith Cemetery State Nature Preserve, Madison County. | 40.10305556, -83.32416667 | | Small prairie remnant in pioneer cemetery; surrounded by farm fields. Full sun. Slight slope, south facing. Fair drainage. Site size 2 square meters; total land area approximately 300 feet x 300 feet. Associated with Andropogon gerardii, Aster laevis, Baptisia australis, Echinacea purpurea, Quercus macrocarpa, Solidago rigida, and other tallgrass prairie plants. | Wild material | | 1690527 | Ames 28253 |
| 18 | Ames 28254 | Stucker Meadow 25 | Heliopsis helianthoides (L.) Sweet | Ohio, United States | NC7 | | | 2004 | COLLECTED | | Holmes and Wayne Counties. | | | | Wild material | | 1690751 | Ames 28254 |
| 19 | NSL 439929 | 9068605 | Heliopsis helianthoides (L.) Sweet | Iowa, United States | NC7 | | | 2004 | COLLECTED | PRE 2001 | | | | | Wild material | | 1694836 | NSL 439929 |
| 20 | NSL 439930 | 9068606 | Heliopsis helianthoides (L.) Sweet | Iowa, United States | NC7 | | | 2004 | COLLECTED | PRE 2001 | | | | | Wild material | | 1694837 | NSL 439930 |
| 21 | NA 68445 | NA 68445 | Heliopsis helianthoides (L.) Sweet | | NA | | Not Available | 1991 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Heliopsis helianthoides. 3 plants received 10/21/91 for original prairie planting; 100 more received from same source on 7/19/93 and interplanted with original. | 2148137 | NA 68445 |
| 22 | Ames 10809 | Ames 10809 | Heliopsis helianthoides (L.) Sweet | Kentucky, United States | NC7 | | | 1989 | COLLECTED | 09/20/1989 | In low area with Elaeagnus umbellata, Fraxinus, & Eupatorium rugosum. 2.0 mi SW Brownsboro on Zaring rd. in the Univ. Louisville Horner Wildlife Refuge, Anchorage quad. Brownsboro city, in Oldham Cty. | 38.35000000, -85.53333333 | 203 | | | | 1053653 | Ames 10809 |