| 0 | PI 666349 | 92 | Zizia aurea (L.) W. D. J. Koch | Missouri, United States | NC7 |  | | 2010 | COLLECTED | 08/2010 | Woods Prairie Preserve (Ozark Regional Land Trust) located approximately 4.85 miles west of Mt. Vernon off Farm Road 2125, T28N R26W NE 1/4 SW 1/4 Sec. 36, Lawrence County. | 37.09171200, -93.73158600 | 378 | Open prairie. Slight slope with an eastern aspect. Upper Ozark prairie remnant, fragipan soil. Diverse vegetation of a virgin prairie. | Wild material | | 1853892 | PI 666349 |
| 1 | PI 666348 | Darby Plains 22 | Zizia aurea (L.) W. D. J. Koch | Ohio, United States | NC7 |  | | 2004 | COLLECTED | 11/01/2004 | Battelle Darby Creek Metropolitan Park, Franklin County. | 39.87478450, -83.21546550 | | | Wild material | | 1680166 | PI 666348 |
| 2 | PI 666347 | Stucker Meadow 38 | Zizia aurea (L.) W. D. J. Koch | Ohio, United States | NC7 |  | | 2004 | COLLECTED | | Fredericksburg, Salt Creek Township, Wayne County. | 40.69523310, -81.87041850 | | | Wild material | | 1690763 | PI 666347 |
| 3 | PI 666344 | ZA1-31 | Zizia aurea (L.) W. D. J. Koch | Iowa, United States | NC7 |  | | 2003 | COLLECTED | 09/19/1998 | Kalsow Prairie, NE 1/4 of Section 36, T90N, R32W | 42.56841330, -94.56839970 | 377 | Prairie remnant. | Wild material | | 1642581 | PI 666344 |
| 4 | PI 666345 | ZA1-47 | Zizia aurea (L.) W. D. J. Koch | Iowa, United States | NC7 |  | | 2003 | COLLECTED | 09/18/1998 | Cayler Prairie, NW 1/4 of Section 17, T99N, R37W, Dickinson County. | 43.39869880, -95.24479070 | | | Wild material | | 1642582 | PI 666345 |
| 5 | PI 666346 | ZA2-01 | Zizia aurea (L.) W. D. J. Koch | Iowa, United States | NC7 |  | | 2003 | COLLECTED | 01/01/1996 | Prairie Rail Trail, N 1/2 of NW 1/4 of NW 1/4 of NW 1/4 of Section 20, T85N, R22W, Story County. | 42.16489520, -93.44382060 | | | Wild material | | 1642583 | PI 666346 |
| 6 | PI 708413 | ZA2-28 | Zizia aurea (L.) W. D. J. Koch | Iowa, United States | NC7 |  | | 2003 | COLLECTED | 09/19/1998 | Liska-Stanek Prairie, SE 1/4 of SE 1/4 of Section 21, T88N, R29W, Webster County. | 42.41350000, -94.22450000 | 345 | Native prairie vegetation. | Wild material | | 1642584 | PI 708413 |
| 7 | W6 56656 | CBG-9081 | Zizia aptera (A. Gray) Fernald | Wisconsin, United States | W6 |  | | 2019 | | | | | | | Wild material | | 2092755 | W6 56656 |
| 8 | W6 50678 | CBG2014-3169 | Zizia aurea (L.) W. D. J. Koch | Kansas, United States | W6 |  | | 2015 | | | | | | | Wild material | | 1931970 | W6 50678 |
| 9 | W6 50723 | CBG2014-3262 | Zizia aurea (L.) W. D. J. Koch | Kansas, United States | W6 | | | 2015 | | | | | | | Wild material | | 1932012 | W6 50723 |
| 10 | W6 49566 | CBG-2542 | Zizia aurea (L.) W. D. J. Koch | Illinois, United States | W6 |  | Not Available | 2015 | | | | | | | Wild material | | 1926038 | W6 49566 |
| 11 | W6 47803 | CBG-2270 | Zizia aptera (A. Gray) Fernald | Illinois, United States | W6 |  | | 2014 | | | | | | | Wild material | | 1919735 | W6 47803 |
| 12 | Ames 32015 | Ames 32015 | Zizia aptera (A. Gray) Fernald | Missouri, United States | NC7 | | Not Available | 2013 | COLLECTED | 08/12/2011 | Adjacent to Crescent Knoll overlook, Shaw Nature Reserve, Gray Summit, Franklin County. | 38.46605830, -90.82059160 | | Crescent glade (limestone). Associated with Echinacea simulata, Oenothera macrocarpa, and Schizachyrium scoparium. | Wild material | | 1908303 | Ames 32015 |
| 13 | NA 73894 | NA 73894 | Zizia aptera (A. Gray) Fernald | | NA | | Not Available | 2004 | | | | | | | | | 1952953 | NA 73894 |
| 14 | Ames 26113 | DB 2000184 | Zizia aurea (L.) W. D. J. Koch | Iowa, United States | NC7 |  | Not Available | 2000 | COLLECTED | 09/15/2000 | South and adjacent to Dolittle Prairie State Preserve, Section 25, Lafayette Township, Story County. | 42.13833333, -93.58194444 | 297 | Native prairie vegetation. | Wild material | At time of collection, the plants had dried and the seeds were shattering. The collection should have been made about one month earlier. | 1605880 | Ames 26113 |
| 15 | NA 73314 | NA 73314 | Zizia aurea (L.) W. D. J. Koch | | NA | | Not Available | 1991 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Zizia aurea. Year received (1991) is approximate. Form received: unknown propagule type. | 2149591 | NA 73314 |