| 0 | PI 667369 | OPGC 1574 | Asclepias incarnata L. | Illinois, United States | OPGC | | | 2004 | DONATED | 08/03/2004 | | | | | Wild material | | 1690256 | PI 667369 |
| 1 | PI 667370 | OPGC 1575 | Asclepias tuberosa L. | Illinois, United States | OPGC | | | 2004 | DONATED | 08/03/2004 | | | | | Wild material | | 1690257 | PI 667370 |
| 2 | PI 667292 | Northern Iowa Eco-zone Germplasm | Asclepias tuberosa L. | Iowa, United States | OPGC | | | 2003 | COLLECTED | PRE 2002 | Numerous samples originally acquired from native prairie remnants within the northern section of three tiers of counties located in Iowa. A total of 12 sites were sampled representing 7 counties including Kossuth (4 sites), Palo Alto, Pocohontas (2 sites), Hancock, Emmett (2 sites), Cherokee, Cerro Gordo. | | | | Wild material | | 1658267 | PI 667292 |
| 3 | PI 667293 | Central Iowa Eco-zone Germplasm | Asclepias tuberosa L. | Iowa, United States | OPGC | | | 2003 | COLLECTED | PRE 2002 | Numerous samples originally acquired from native prairie remnants within the central section of three tiers of counties located in Iowa. A total of 9 sites were sampled representing 6 counties including Story (3 sites), Webster, Sac, Audubon, Calhoun, Guthrie (2 sites). | | | | Wild material | | 1658268 | PI 667293 |
| 4 | PI 667294 | Southern Iowa Eco-zone Germplasm | Asclepias tuberosa L. | Iowa, United States | OPGC | | | 2003 | COLLECTED | PRE 2002 | Numerous samples originally acquired from native prairie remnants within the southern section of three tiers of counties located in Iowa. A total of 13 sites were sampled representing 7 counties including Van Buren (2 sites), Appanoose (4 sites), Monroe, Marion (2 sites), Lucas, Jefferson, Warren (2 sites). | | | | Wild material | | 1658269 | PI 667294 |
| 5 | PI 443055 | | Asclepias tuberosa L. | Massachusetts, United States | | | Historic | 1980 | DEVELOPED | | | | | | | | 1337991 | PI 443055 |
| 6 | PI 443056 | | Asclepias tuberosa L. | United States | | | Historic | 1980 | COLLECTED | 09/1975 | Onondaga Co., New York | | | | | Collected by W. Oaks. | 1337992 | PI 443056 |
| 7 | PI 443057 | | Asclepias tuberosa L. | United States | OPGC | | Not Available | 1980 | COLLECTED | 09/1975 | Onondaga Co., New York | | | | | Collected by W. Oaks. | 1337993 | PI 443057 |
| 8 | PI 443058 | | Asclepias tuberosa L. | United States | OPGC | | Not Available | 1980 | COLLECTED | | Onondaga Co., New York | | | | | Collected by W. Oaks. | 1337994 | PI 443058 |
| 9 | PI 443059 | | Asclepias tuberosa L. | United States | OPGC | | Not Available | 1980 | COLLECTED | 10/1976 | Saratoga Co., New York | | | | | Collected by W. Oaks. | 1337995 | PI 443059 |
| 10 | PI 443060 | | Asclepias tuberosa L. | United States | OPGC | | Not Available | 1980 | COLLECTED | 10/1976 | Saratoga Co., New York | | | | | Collected by W. Oaks. | 1337996 | PI 443060 |
| 11 | PI 443061 | | Asclepias tuberosa L. | United States | | | Historic | 1980 | COLLECTED | 10/1976 | Saratoga Co., New York | | | | | Collected by W. Oaks. | 1337997 | PI 443061 |
| 12 | PI 443062 | | Asclepias tuberosa L. | United States | OPGC | | Not Available | 1980 | COLLECTED | 10/1976 | Saratoga Co., New York | | | | | Collected by W. Oaks. | 1337998 | PI 443062 |
| 13 | PI 443063 | | Asclepias tuberosa L. | United States | OPGC | | Not Available | 1980 | COLLECTED | 10/1976 | Saratoga Co., New York | | | | | Collected by W. Oaks. | 1337999 | PI 443063 |
| 14 | PI 443064 | | Asclepias tuberosa L. | United States | | | Historic | 1980 | COLLECTED | 10/1976 | Saratoga Co., New York | | | | | Collected by W. Oaks. | 1338000 | PI 443064 |
| 15 | PI 443065 | | Asclepias tuberosa L. | United States | | | Historic | 1980 | COLLECTED | 10/1976 | Saratoga Co., New York | | | | | Collected by W. Oaks. | 1338001 | PI 443065 |
| 16 | PI 443066 | | Asclepias tuberosa L. | United States | | | Historic | 1980 | COLLECTED | | Allegheny Co., Pennsylvania | | | | | Collected by W. Oaks. | 1338002 | PI 443066 |
| 17 | PI 443067 | | Asclepias tuberosa L. | United States | OPGC | | Not Available | 1980 | COLLECTED | 09/1977 | New York | | | | | Collected by F. Gaffney. | 1338003 | PI 443067 |
| 18 | PI 443068 | | Asclepias tuberosa L. | United States | OPGC | | Not Available | 1980 | COLLECTED | 09/1979 | Monroe Co., New York | | | | | Collected by F. Gaffney. | 1338004 | PI 443068 |
| 19 | PI 443069 | | Asclepias tuberosa L. | United States | | | Historic | 1980 | COLLECTED | 10/1975 | Onondaga Co., New York | | | | | | 1338005 | PI 443069 |
| 20 | PI 443070 | | Asclepias tuberosa L. | New York, United States | OPGC | | Not Available | 1980 | DONATED | 05/1980 | | | | | | Composite sample of NY-5358, 5359, and 5360. | 1338006 | PI 443070 |
| 21 | PI 443071 | | Asclepias tuberosa L. | New York, United States | OPGC | | Not Available | 1980 | DEVELOPED | | | | | | | | 1338007 | PI 443071 |
| 22 | PI 443072 | | Asclepias tuberosa L. | United States | OPGC | | | 1980 | COLLECTED | | Onondaga Co., New York | | | | | Collected by F. Gaffney. | 1338008 | PI 443072 |
| 23 | PI 421278 | | Asclepias tuberosa L. | Nebraska, United States | OPGC | | Not Available | 1977 | COLLECTED | | Saunders County | | | | Wild material | | 1318013 | PI 421278 |
| 24 | PI 420203 | | Asclepias sp. | | | | Historic | 1977 | COLLECTED | | Garden in front of Hotel Honduras Maya, Tegucigalpa | | | | | Shrub. Fruits large, dehisce and thick pod walls remain on as an ornamental structure. 10 | 1317436 | PI 420203 |
| 25 | PI 203334 | 12238 | Asclepias sp. | Mexico | OPGC | | Not Available | 1952 | DONATED | 10/1952 | | | | | | Flowers lavender | 1170601 | PI 203334 |
| 26 | PI 195758 | No. 2794 | Asclepias sp. | Jutiapa, Guatemala | | | Historic | 1951 | COLLECTED | | | | | | | | 1673254 | PI 195758 |
| 27 | PI 195759 | No. 2795 | Asclepias sp. | Jutiapa, Guatemala | | | Historic | 1951 | COLLECTED | | | | | | | | 1673255 | PI 195759 |
| 28 | PI 195760 | No. 2826 | Asclepias sp. | Sacatepéquez, Guatemala | | | Historic | 1951 | COLLECTED | | | | | | | | 1673256 | PI 195760 |
| 29 | PI 195761 | No. 2836 | Asclepias sp. | Sacatepéquez, Guatemala | | | Historic | 1951 | COLLECTED | | | | | | | | 1673257 | PI 195761 |
| 30 | PI 195762 | No. 2844 | Asclepias sp. | Sacatepéquez, Guatemala | | | Historic | 1951 | COLLECTED | | | | | | | | 1673258 | PI 195762 |
| 31 | PI 195763 | No. 2849 | Asclepias sp. | Sacatepéquez, Guatemala | | | Historic | 1951 | COLLECTED | | | | | | | | 1673259 | PI 195763 |
| 32 | PI 195286 | No. 2618 | Asclepias sp. | Zacapa, Guatemala | | | Historic | 1951 | COLLECTED | 03/1951 | | | | | | | 1672542 | PI 195286 |
| 33 | PI 195287 | No. 2638 | Asclepias sp. | Jalapa, Guatemala | | | Historic | 1951 | COLLECTED | 03/1951 | | | | | | | 1672543 | PI 195287 |
| 34 | PI 151565 | No. 3 | Asclepias curassavica L. | Indonesia | | | Historic | 1945 | COLLECTED | 06/1945 | Mavus | | | | | | 1888669 | PI 151565 |
| 35 | PI 150434 | | Asclepias curassavica L. | Managua, Nicaragua | | | Historic | 1945 | COLLECTED | | El Recreo | | 30 | | | | 1887103 | PI 150434 |
| 36 | PI 148221 | | Asclepias syriaca L. | Maryland, United States | | | Historic | 1944 | COLLECTED | | Nebraska | | | | | | 1881804 | PI 148221 |
| 37 | PI 147688 | | Asclepias sp. | Mato Grosso do Sul, Brazil | | | Historic | 1944 | COLLECTED | 12/04/1943 | Corumba | | | | | | 1881276 | PI 147688 |
| 38 | PI 147590 | | Asclepias sp. | Mato Grosso, Brazil | | | Historic | 1943 | COLLECTED | 10/05/1943 | Cuyabia | | | | | | 1881133 | PI 147590 |
| 39 | PI 147432 | | Asclepias sp. | Mato Grosso do Sul, Brazil | | | Historic | 1943 | COLLECTED | | | | | | | | 1880956 | PI 147432 |
| 40 | PI 147433 | | Asclepias sp. | Mato Grosso do Sul, Brazil | | | Historic | 1943 | COLLECTED | | | | | | | | 1880957 | PI 147433 |
| 41 | PI 145682 | No. 1 | Asclepias sp. | Saudi Arabia | | | Historic | 1943 | COLLECTED | | Gizzan | | | | | | 1878470 | PI 145682 |
| 42 | PI 143987 | No. 2100 | Asclepias subulata Decne. | Mexico | | | Historic | 1942 | COLLECTED | | | | | | | | 1871763 | PI 143987 |
| 43 | PI 130478 | No. 13669 | Asclepias sp. | Yunnan Sheng, China | | | Historic | 1938 | COLLECTED | | Tuatze, Chungtien | | 3400 | | | | 1846422 | PI 130478 |
| 44 | PI 123275 | No. 1926 | Asclepias sp. | Urfa, Turkey | | | Historic | 1937 | COLLECTED | 07/21/1937 | Birejik | | | | | | 1834887 | PI 123275 |
| 45 | PI 112305 | | Asclepias sp. | Unknown | | | Historic | 1935 | COLLECTED | | Africa | | | | | | 1492055 | PI 112305 |
| 46 | PI 109237 | No. T-323 | Asclepias sp. | Turkey | | | Historic | 1935 | COLLECTED | 10/08/1934 | Dry rocky hills in vicinity of Kizilja Hammam | | | | | | 1568163 | PI 109237 |
| 47 | PI 107450 | No. 2670 | Asclepias curassavica L. | Suriname | | | Historic | 1934 | COLLECTED | 11/02/1934 | Scotelweg | | | | | | 1796818 | PI 107450 |
| 48 | PI 99772 | No. 216 | Asclepias curassavica L. | Peru | | | Historic | 1932 | COLLECTED | 04/28/1932 | Rio Colorado near Merced | | 843 | | | | 1787098 | PI 99772 |
| 49 | PI 91396 | | Asclepias tuberosa L. | England, United Kingdom | | | Historic | 1931 | COLLECTED | | | | | | | | 1777810 | PI 91396 |
| 50 | PI 74598 | | Asclepias sp. | Tianjin Shi, China | | | Historic | 1927 | COLLECTED | | | | | | | | 1729326 | PI 74598 |
| 51 | PI 59766 | | Asclepias subulata Decne. | California, United States | | | Historic | 1924 | COLLECTED | | | | | | | | 1499991 | PI 59766 |
| 52 | PI 60353 | | Asclepias stellifera Schltr. | Transvaal, South Africa | | | Historic | 1924 | COLLECTED | | | | | | | | 1500086 | PI 60353 |
| 53 | PI 51368 | | Asclepias curassavica L. | Provence-Alpes-Côte-d’Azur, France | | | Historic | 1920 | COLLECTED | | | | | | | | 1505988 | PI 51368 |
| 54 | PI 50678 | Viborana | Asclepias curassavica L. | Guatemala, Guatemala | | | Historic | 1920 | COLLECTED | | | | | | | | 1618380 | PI 50678 |
| 55 | PI 4464 | | Asclepias subulata Decne. | Sonora, Mexico | | | Historic | 1899 | COLLECTED | | | | | | | | 1539775 | PI 4464 |
| 56 | PI 4438 | | Asclepias subulata Decne. | California, United States | | | Historic | 1899 | COLLECTED | | | | | | | | 1539738 | PI 4438 |
| 57 | NA 87754 | NA 87754 | Asclepias curassavica L. | | NA | | Not Available | 2024 | | | | | | | Cultivated material | | 2168733 | NA 87754 |
| 58 | NA 87793 | NA 87793 | Asclepias tuberosa L. | | NA | | Not Available | 2024 | | | | | | | Cultivated material | | 2170518 | NA 87793 |
| 59 | W6 61480 | CA160-66 | Asclepias fascicularis Decne. | California, United States | W6 |  | | 2024 | | | | | | | | | 2167579 | W6 61480 |
| 60 | W6 61562 | CA340-52 | Asclepias fascicularis Decne. | California, United States | W6 |  | | 2024 | | | | | | | Wild material | | 2168011 | W6 61562 |
| 61 | W6 61570 | CA350-141 | Asclepias fascicularis Decne. | Nevada, United States | W6 |  | | 2024 | | | | | | | Wild material | The population occurs on both sides of the road and down into the wash located to the south Plants do not flower and fruit simultaneously Pods will need to be bagged and collected intermittently as they ripen and dihesce over a number of weeks Plants almost exclusively favor S facing rocky slopes with seasonal ephemeral access to water This population continues densely in and along the wash to the W of Rd 26006 However this area falls outside of BLM | 2168019 | W6 61570 |
| 62 | W6 61571 | CA350-142 | Asclepias speciosa Torr. | California, United States | W6 |  | | 2024 | | | | | | | Wild material | Plants are located on the S side of Smoke Creek Rd outside of a nearby BLM exclosure | 2168020 | W6 61571 |
| 63 | W6 61584 | CA360-220 | Asclepias eriocarpa Benth. | California, United States | W6 |  | | 2024 | | | | | | | Wild material | | 2168032 | W6 61584 |
| 64 | W6 61775 | MD1-39 | Asclepias erosa Torr. | Nevada, United States | W6 |  | | 2024 | | | | | | | Wild material | Bags were tied to plants on 8 8 22 28 9 6 13 27 and 10 11 23 to collect seeds once fruits ripened Plants continued setting new seed throughout the fall | 2168223 | W6 61775 |
| 65 | W6 61787 | MT050-81 | Asclepias speciosa Torr. | Montana, United States | W6 |  | | 2024 | | | | | | | Wild material | Flower color is a light pink Leaves board and somewhat hairy Stem is filled with a thick milky substance | 2168234 | W6 61787 |
| 66 | W6 61817 | NV030-1584 | Asclepias fascicularis Decne. | Nevada, United States | W6 |  | Not Available | 2024 | | | | | | | Wild material | Leaf morphology | 2168264 | W6 61817 |
| 67 | W6 62000 | UT070-15 | Asclepias labriformis M. E. Jones | Utah, United States | W6 |  | | 2024 | | | | | | | Wild material | A labriformis sp not in database Utah milkweed Collection method Put bags around 1-5 of seed pods found on each plant at each visit | 2168399 | W6 62000 |
| 68 | OPGC 7586 | OPGC 7586 | Asclepias curassavica L. | | OPGC | | Not Available | 2024 | | | | | | | Breeding material | | 2167962 | OPGC 7586 |
| 69 | NA 87181 | NA 87181 | Asclepias tuberosa L. | | NA | | Not Available | 2023 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Asclepias tuberosa. This number may be used for any Asclepias tuberosa used in the National Herb Garden for regular display plantings; the plants have proven to be short-lived in this garden and are frequently replaced from different sources, so the specific source may vary from year to year, but it is not relevant to the purpose of being grown. Form received: unknown propagule type. | 2155219 | NA 87181 |
| 70 | NA 82342 | NA 82342 | Asclepias tuberosa L. | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Asclepias tuberosa. Note per curator: "Unknown source. I had been told that A. tuberosa in FV meadow was planted originally, pre-1987. But I could be wrong and some or all could be naturally occurring. However lack of it in other meadows suggests planted originally." [Update 8/18/2021: possibly NA 52604, which was originally collected near the Gotelli Conifer Collection as seed in 1983 by Sherry McNatt; 8 plants were planted in the Fern Valley "prairie" in 1984. According to Freeman's checklist of naturally-occurring plants at USNA, this species was found occasionally in dry meadows, so it may be of native origin. -SBL] Form received: existing plant. | 2152887 | NA 82342 |
| 71 | NA 74951 | 'Hello Yellow' | Asclepias tuberosa L. | | NA | | Not Available | 2023 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Asclepias tuberosa 'Hello Yellow'. Form received: unknown propagule type. | 2150212 | NA 74951 |
| 72 | OPGC 8706 | CA067-12 | Asclepias subulata Decne. | California, United States | OPGC |  | Not Available | 2023 | | | | | | | Wild material | Within 1/2 mile of Mexico border, big border patrol presence. Indeterminate fruiting for plant. Collected 344 pods | 2142545 | OPGC 8706 |
| 73 | OPGC 8766 | NM080-308 | Asclepias subverticillata (A. Gray) Vail | New Mexico, United States | OPGC | | | 2023 | | | | | | | Wild material | Perennial forb with whorled, filiform leaves. Growing erect up to 3 ft tall. Inflorescence is an umbel of white flowers, and fruit is an erect follicle that goes from green to dark brown. | 2142118 | OPGC 8766 |
| 74 | OPGC 8769 | NM930-523 | Asclepias speciosa Torr. | New Mexico, United States | OPGC | | | 2023 | | | | | | | Wild material | Plants are 1+ meter tall, showy pink/purple flower clusters (distinct star shape), oblong opposite leaves, seeds in large pods with soft spines, seeds attached to fuzzy white hairs to assist with dispersal. Pods split open when mature. Growing along Rio Chama below dam, high flow control. | 2142148 | OPGC 8769 |
| 75 | OPGC 8780 | NV060-15 | Asclepias speciosa Torr. | Nevada, United States | OPGC | | | 2023 | | | | | | | Wild material | By mid-September, individuals had developed pods. Patches are scattered along gravel road between old farm buildings and Old River Rd. Collect a voucher next season: 40.662005, -116.924652. Most plants occur in difficult to access areas like dense willow | 2142199 | OPGC 8780 |
| 76 | OPGC 8798 | UT930-18 | Asclepias erosa Torr. | Nevada, United States | OPGC | | | 2023 | | | | | | | Wild material | | 2142771 | OPGC 8798 |
| 77 | OPGC 8847 | CBG- 10858 | Asclepias sullivantii Engelm. ex A. Gray | Illinois, United States | OPGC | | | 2023 | | | | | | | Wild material | | 2142305 | OPGC 8847 |
| 78 | OPGC 8693 | UT080-298 | Asclepias speciosa Torr. | Utah, United States | OPGC | | | 2022 | | | | | | | Wild material | red/purple flowers, rhizomatous, opposite grey/green leaves. milky sap. seed pods pointing up. | 2139108 | OPGC 8693 |
| 79 | NA 87117 | 'Ice Ballet' | Asclepias incarnata L. | | NA | | Not Available | 2022 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Asclepias incarnata 'Ice Ballet'. Purchased for the Pollinator Week exhibit on the National Mall. | 2155158 | NA 87117 |
| 80 | NA 87118 | (Gay Butterflies mix) | Asclepias tuberosa L. | | NA | | Not Available | 2022 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Asclepias tuberosa (Gay Butterflies mix). Purchased for the Pollinator Week exhibit on the National Mall. | 2155159 | NA 87118 |
| 81 | OPGC 8640 | CA320-198 | Asclepias fascicularis Decne. | California, United States | OPGC |  | | 2022 | | | | | | | Wild material | A slender perennial with many erect stems bearing very narrow long pointed leaves. The leaves are whorled along the stem. Flowers are pale pink to white, and the fruit pods are smooth and narrow. | 2138481 | OPGC 8640 |
| 82 | OPGC 8641 | OR110-1096 | Asclepias fascicularis Decne. | Oregon, United States | OPGC |  | Not Available | 2022 | | | | | | | Wild material | creamy flower color, abundant | 2138482 | OPGC 8641 |
| 83 | OPGC 8642 | CA370-282 | Asclepias speciosa Torr. | California, United States | OPGC |  | | 2022 | | | | | | | Wild material | A hairy erect perennial with large, opposite arranged leaves. Fuzzy star-like pink to pinkish-purple flowers are arranged in thick umbels. The fruit is large and covered in soft spines. | 2138484 | OPGC 8642 |
| 84 | OPGC 8676 | NV030-1562 | Asclepias fascicularis Decne. | Nevada, United States | OPGC |  | | 2022 | | | | | | | Wild material | | 2138784 | OPGC 8676 |
| 85 | OPGC 8527 | NEWFS-715 | Asclepias syriaca L. | New Hampshire, United States | OPGC | | Not Available | 2021 | | | | | | | Wild material | Simple, opposite leaves. Leaf a rounded oval. Pods green-grey. Dehisces at maturity to release seeds. | 2138813 | OPGC 8527 |
| 86 | OPGC 8543 | NEWFS-822 | Asclepias syriaca L. | Massachusetts, United States | OPGC | | | 2021 | | | | | | | Wild material | Simple opposite leaves leaf a rounded oval pods green grey dehisces at maturity to release seeds | 2138879 | OPGC 8543 |
| 87 | OPGC 8497 | NCBG-374 | Asclepias syriaca L. | Virginia, United States | OPGC | | | 2021 | | | | | | | Wild material | | 2132872 | OPGC 8497 |
| 88 | OPGC 8423 | CO932-416 | Asclepias speciosa Torr. | Colorado, United States | OPGC |  | | 2021 | | | | | | | Wild material | Unbranched erect stem, leaves opposite, larger, lance-ovate, pubescent, solitary umbels, dense white pubescent, terminal, corolla pink-cream, horns present | 2120774 | OPGC 8423 |
| 89 | OPGC 8427 | NV030-1509 | Asclepias fascicularis Decne. | Nevada, United States | OPGC | | | 2021 | | | | | | | Wild material | | 2120786 | OPGC 8427 |
| 90 | OPGC 8428 | NV030-1510 | Asclepias speciosa Torr. | Nevada, United States | OPGC | | | 2021 | | | | | | | Wild material | | 2120787 | OPGC 8428 |
| 91 | OPGC 8435 | UT080-327 | Asclepias labriformis M. E. Jones | Utah, United States | OPGC | | | 2021 | | | | | | | Wild material | | 2120834 | OPGC 8435 |
| 92 | OPGC 8385 | CA660-39 | Asclepias erosa Torr. | California, United States | OPGC |  | | 2021 | | | | | | | Wild material | | 2120408 | OPGC 8385 |
| 93 | OPGC 8292 | CBG-10192 | Asclepias tuberosa L. | Iowa, United States | OPGC | | Not Available | 2021 | | | | | | | Wild material | | 2120059 | OPGC 8292 |
| 94 | OPGC 8296 | CBG-10372 | Asclepias incarnata L. subsp. incarnata | Iowa, United States | OPGC | | Not Available | 2021 | | | | | | | Wild material | | 2120067 | OPGC 8296 |
| 95 | OPGC 8304 | CBG-10440 | Asclepias verticillata L. | Indiana, United States | OPGC | | | 2021 | | | | | | | Wild material | | 2120082 | OPGC 8304 |
| 96 | OPGC 8311 | CBG-10466 | Asclepias viridis Walter | Illinois, United States | OPGC | | Not Available | 2021 | | | | | | | Wild material | | 2120099 | OPGC 8311 |
| 97 | OPGC 8312 | CBG-10467 | Asclepias viridis Walter | Illinois, United States | OPGC | | Not Available | 2021 | | | | | | | Wild material | forb | 2120100 | OPGC 8312 |
| 98 | OPGC 8581 | CBG-10714 | Asclepias purpurascens L. | | OPGC |  | Not Available | 2021 | | | | | | | Wild material | | 2137994 | OPGC 8581 |
| 99 | OPGC 8196 | NEWFS-531 | Asclepias syriaca L. | Massachusetts, United States | OPGC | | Not Available | 2021 | | | | | | | Wild material | | 2115683 | OPGC 8196 |
| 100 | OPGC 8122 | NV030-1450 | Asclepias fascicularis Decne. | Nevada, United States | OPGC | | | 2020 | | | | | | | Wild material | 3-5 feet, erect habit, Asclepias pods, narrow lvs arranged in whorl. | 2110397 | OPGC 8122 |
| 101 | OPGC 8123 | NV030-1451 | Asclepias speciosa Torr. | Nevada, United States | OPGC | | | 2020 | | | | | | | Wild material | Erect stems, whorled leaf arrangement, pointed leaf tips, hairy leaves. | 2110398 | OPGC 8123 |
| 102 | NA 86717 | NA 86717 | Asclepias incarnata L. | | NA | | Not Available | 2020 | | | | | | | Wild material | Full name as recorded at U.S. National Arboretum: Asclepias incarnata. | 2154869 | NA 86717 |
| 103 | OPGC 8084 | ID320-117 | Asclepias speciosa Torr. | Idaho, United States | OPGC | | | 2020 | | | | | | | Wild material | Leaves petiolate, oblong-lanceolate. | 2107616 | OPGC 8084 |
| 104 | OPGC 8086 | UT080-263 | Asclepias labriformis M. E. Jones | Utah, United States | OPGC | | | 2020 | | | | | | | Wild material | Whitish yellow flowers, long lanceolate leaves, large green/yellow milkpods. Milky sap. | 2107621 | OPGC 8086 |
| 105 | OPGC 7547 | JDC/AT/2020/020/941 | Asclepias tuberosa L. | Iowa, United States | OPGC | | | 2020 | COLLECTED | 09/17/2020 | Located approximately 0.75 miles east of Blairsburg, T89N, R24W NE 1/4 of Sec. 36, Hamilton County | 42.48218800, -93.63088000 | 376 | Roadside, remnant prairie. Canisteo and Nicollette clay loam soils (1-3 percent slopes) with depth to water table about 0-42 inches, slightly acidic and somewhat poorly drained. Very diverse flora present. | Wild material | | 2107726 | OPGC 7547 |
| 106 | OPGC 8057 | ID310-40 | Asclepias speciosa Torr. | Idaho, United States | OPGC | | | 2020 | | | | | | | Wild material | Leaves petiolate, oblong-lanceolate. | 2107486 | OPGC 8057 |
| 107 | OPGC 8058 | ID310-41 | Asclepias speciosa Torr. | Idaho, United States | OPGC | | | 2020 | | | | | | | Wild material | Leaves, petiolate, oblong-lanceolate. | 2107487 | OPGC 8058 |
| 108 | OPGC 8059 | ID310-42 | Asclepias speciosa Torr. | Idaho, United States | OPGC | | | 2020 | | | | | | | Wild material | Petiolate leaves, oblong-lanceolate leaves. | 2107488 | OPGC 8059 |
| 109 | OPGC 8067 | OR110-1084 | Asclepias fascicularis Decne. | Oregon, United States | OPGC | | | 2020 | | | | | | | Wild material | | 2107509 | OPGC 8067 |
| 110 | OPGC 8032 | NV020-10 | Asclepias fascicularis Decne. | Nevada, United States | OPGC | | | 2020 | | | | | | | Wild material | | 2106482 | OPGC 8032 |
| 111 | OPGC 7955 | NEWFS-471 | Asclepias syriaca L. | Massachusetts, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 2098224 | OPGC 7955 |
| 112 | OPGC 7952 | NEWFS-428 | Asclepias syriaca L. | Massachusetts, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 2098219 | OPGC 7952 |
| 113 | OPGC 7950 | NEWFS-411 | Asclepias syriaca L. | Massachusetts, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 2098216 | OPGC 7950 |
| 114 | OPGC 7903 | MARSB-411 | Asclepias tuberosa L. | New York, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 2097619 | OPGC 7903 |
| 115 | OPGC 7904 | MARSB-440 | Asclepias syriaca L. | New York, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 2097631 | OPGC 7904 |
| 116 | OPGC 7529 | AZ930-425 | Asclepias subverticillata (A. Gray) Vail | Arizona, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 2096895 | OPGC 7529 |
| 117 | OPGC 7478 | CBG-9137 | Asclepias speciosa Torr. | Nebraska, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 2092775 | OPGC 7478 |
| 118 | OPGC 7490 | CBG-9430 | Asclepias incarnata L. | Illinois, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 2092804 | OPGC 7490 |
| 119 | OPGC 7450 | CP4-30 | Asclepias speciosa Torr. | Colorado, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 2092027 | OPGC 7450 |
| 120 | NA 85749 | NA 85749 | Asclepias exaltata L. | | NA | | Not Available | 2019 | | | | | | | Cultivated material | | 2158466 | NA 85749 |
| 121 | NA 87442 | NA 87442 | Asclepias purpurascens L. | | NA | | Not Available | 2019 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Asclepias purpurascens. These were somehow missed during the rounds of accessioning of material from this nursery that arrived in 2019 (the plants were in very poor condition upon arrival, as well), but a number survived and are now (2023) doing well. | 2155376 | NA 87442 |
| 122 | NA 85716 | NA 85716 | Asclepias tuberosa L. | | NA | | Not Available | 2019 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Asclepias tuberosa. | 2154345 | NA 85716 |
| 123 | OPGC 7383 | NEWFS-143 | Asclepias syriaca L. | Massachusetts, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 1976163 | OPGC 7383 |
| 124 | OPGC 7385 | NEWFS-164 | Asclepias syriaca L. | Massachusetts, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 1976169 | OPGC 7385 |
| 125 | OPGC 7388 | NEWFS-221 | Asclepias syriaca L. | Massachusetts, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 1976181 | OPGC 7388 |
| 126 | OPGC 7394 | NEWFS-308 | Asclepias syriaca L. | New Hampshire, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 1976215 | OPGC 7394 |
| 127 | OPGC 7395 | NEWFS-319 | Asclepias syriaca L. | Massachusetts, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 1976220 | OPGC 7395 |
| 128 | OPGC 7396 | NEWFS-417 | Asclepias syriaca L. | Massachusetts, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 1976251 | OPGC 7396 |
| 129 | OPGC 7399 | NEWFS-446 | Asclepias syriaca L. | New Hampshire, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 1976264 | OPGC 7399 |
| 130 | OPGC 7400 | NEWFS-447 | Asclepias syriaca L. | Maine, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 1976265 | OPGC 7400 |
| 131 | OPGC 7401 | NEWFS-449 | Asclepias syriaca L. | Massachusetts, United States | OPGC |  | Not Available | 2019 | | | | | | | Wild material | | 1976266 | OPGC 7401 |
| 132 | OPGC 7407 | NEWFS-515 | Asclepias syriaca L. | New Hampshire, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 1976286 | OPGC 7407 |
| 133 | OPGC 7409 | NEWFS-578 | Asclepias syriaca L. | New Hampshire, United States | OPGC |  | | 2019 | | | | | | | Wild material | | 1976293 | OPGC 7409 |
| 134 | OPGC 7317 | CA190A-220 | Asclepias fascicularis Decne. | California, United States | OPGC |  | | 2018 | | | | | | | Wild material | | 1970403 | OPGC 7317 |
| 135 | OPGC 7318 | CA190A-221 | Asclepias fascicularis Decne. | California, United States | OPGC |  | | 2018 | | | | | | | Wild material | | 1970404 | OPGC 7318 |
| 136 | OPGC 7319 | CA190A-222 | Asclepias fascicularis Decne. | California, United States | OPGC |  | | 2018 | | | | | | | Wild material | | 1970405 | OPGC 7319 |
| 137 | OPGC 7320 | CA190B-116 | Asclepias fascicularis Decne. | California, United States | OPGC |  | | 2018 | | | | | | | Wild material | | 1970407 | OPGC 7320 |
| 138 | OPGC 7327 | CA930A-726 | Asclepias erosa Torr. | California, United States | OPGC |  | | 2018 | | | | | | | Wild material | | 1970488 | OPGC 7327 |
| 139 | OPGC 7328 | CA930A-728 | Asclepias subulata Decne. | California, United States | OPGC |  | | 2018 | | | | | | | Wild material | | 1970489 | OPGC 7328 |
| 140 | W6 55481 | CA360-156 | Asclepias fascicularis Decne. | California, United States | | | Historic | 2018 | | | | | | | Wild material | | 1970192 | W6 55481 |
| 141 | OPGC 6730 | CA360-156 | Asclepias fascicularis Decne. | California, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias fascicularis | 1967877 | OPGC 6730 |
| 142 | OPGC 6755 | OR050-272 | Asclepias fascicularis Decne. | Oregon, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias fascicularis | 1967941 | OPGC 6755 |
| 143 | OPGC 6602 | NCBG-219 | Asclepias syriaca L. | North Carolina, United States | OPGC | | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1965869 | OPGC 6602 |
| 144 | OPGC 6609 | NCBG-381 | Asclepias syriaca L. | Virginia, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1965939 | OPGC 6609 |
| 145 | OPGC 6612 | NCBG-517 | Asclepias syriaca L. | Maryland, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1965969 | OPGC 6612 |
| 146 | OPGC 6613 | NCBG-525 | Asclepias syriaca L. | Maryland, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1965971 | OPGC 6613 |
| 147 | OPGC 6614 | NCBG-538 | Asclepias syriaca L. | Maryland, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1965973 | OPGC 6614 |
| 148 | OPGC 6615 | NCBG-600 | Asclepias syriaca L. | North Carolina, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1965986 | OPGC 6615 |
| 149 | OPGC 6621 | NCBG-730 | Asclepias syriaca L. | North Carolina, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1966035 | OPGC 6621 |
| 150 | OPGC 6530 | MARSB-167 | Asclepias syriaca L. | Delaware, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1964728 | OPGC 6530 |
| 151 | OPGC 6534 | MARSB-310 | Asclepias syriaca L. | New Jersey, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1964756 | OPGC 6534 |
| 152 | OPGC 6535 | MARSB-323 | Asclepias syriaca L. | New Jersey, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1964758 | OPGC 6535 |
| 153 | OPGC 6540 | MARSB-472 | Asclepias syriaca L. | New Jersey, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1964779 | OPGC 6540 |
| 154 | OPGC 6541 | MARSB-474 | Asclepias syriaca L. | New Jersey, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1964780 | OPGC 6541 |
| 155 | OPGC 6545 | MARSB-597 | Asclepias syriaca L. | New York, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1964806 | OPGC 6545 |
| 156 | OPGC 6546 | MARSB-602 | Asclepias syriaca L. | New York, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias syriaca | 1964807 | OPGC 6546 |
| 157 | OPGC 6555 | NM018-108 | Asclepias subverticillata (A. Gray) Vail | New Mexico, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | Asclepias subverticillata | 1964897 | OPGC 6555 |
| 158 | OPGC 6569 | OR110-904 | Asclepias speciosa Torr. | Oregon, United States | OPGC | | Not Available | 2018 | | | | | | | Wild material | Asclepias speciosa | 1964999 | OPGC 6569 |
| 159 | W6 54480 | UT030-274 | Asclepias speciosa Torr. | Utah, United States | | | Historic | 2018 | | | | | | | Wild material | Asclepias speciosa | 1965197 | W6 54480 |
| 160 | OPGC 6470 | CA320-177 | Asclepias fascicularis Decne. | California, United States | OPGC | | Not Available | 2018 | | | | | | | Wild material | | 1964209 | OPGC 6470 |
| 161 | OPGC 6502 | NM080-77 | Asclepias subverticillata (A. Gray) Vail | New Mexico, United States | OPGC |  | | 2018 | | | | | | | Wild material | | 1964400 | OPGC 6502 |
| 162 | OPGC 6506 | UT030-274 | Asclepias speciosa Torr. | Utah, United States | OPGC |  | | 2018 | | | | | | | Wild material | | 1964416 | OPGC 6506 |
| 163 | OPGC 6514 | NV030-1214 | Asclepias fascicularis Decne. | Nevada, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | | 1964452 | OPGC 6514 |
| 164 | OPGC 6528 | UT080-214 | Asclepias labriformis M. E. Jones | Utah, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | | 1964574 | OPGC 6528 |
| 165 | OPGC 6426 | NM930-237 | Asclepias subverticillata (A. Gray) Vail | New Mexico, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | | 1957534 | OPGC 6426 |
| 166 | OPGC 6430 | NM930-261 | Asclepias subverticillata (A. Gray) Vail | New Mexico, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | | 1957559 | OPGC 6430 |
| 167 | OPGC 6434 | OR080-48 | Asclepias speciosa Torr. | Oregon, United States | OPGC |  | Not Available | 2018 | | | | | | | Wild material | | 1957631 | OPGC 6434 |
| 168 | NA 85036 | NA 85036 | Asclepias tuberosa L. | | NA | | Not Available | 2018 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Asclepias tuberosa. To be planted in the Friendship Garden. | 2153979 | NA 85036 |
| 169 | OPGC 6379 | CBG-7463 | Asclepias incarnata L. subsp. incarnata | Colorado, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1954760 | OPGC 6379 |
| 170 | OPGC 6380 | CBG-7503 | Asclepias speciosa Torr. | Iowa, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1954761 | OPGC 6380 |
| 171 | NA 82347 | NA 82347 | Asclepias syriaca L. | | NA | | Not Available | 2017 | | | | | | | | | 1951901 | NA 82347 |
| 172 | OPGC 5463 | OR030-533 | Asclepias speciosa Torr. | Oregon, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1949821 | OPGC 5463 |
| 173 | OPGC 5465 | OR110-968 | Asclepias fascicularis Decne. | Oregon, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1949843 | OPGC 5465 |
| 174 | OPGC 5461 | NV052-613 | Asclepias speciosa Torr. | Nevada, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1949064 | OPGC 5461 |
| 175 | OPGC 5440 | CO150A-11 | Asclepias speciosa Torr. | Colorado, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1948582 | OPGC 5440 |
| 176 | OPGC 5441 | CO150A-12 | Asclepias subverticillata (A. Gray) Vail | Colorado, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1948583 | OPGC 5441 |
| 177 | OPGC 5443 | NM018-64 | Asclepias subverticillata (A. Gray) Vail | New Mexico, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1948600 | OPGC 5443 |
| 178 | OPGC 5444 | NM018-71 | Asclepias speciosa Torr. | New Mexico, United States | OPGC |  | Not Available | 2017 | | | | | | | Wild material | | 1948601 | OPGC 5444 |
| 179 | NA 86585 | NA 86585 | Asclepias tuberosa L. | | NA | | Not Available | 2017 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Asclepias tuberosa. | 2154796 | NA 86585 |
| 180 | OPGC 5425 | UT030-256 | Asclepias speciosa Torr. | Utah, United States | OPGC | | Not Available | 2017 | | | | | | | Wild material | | 1947121 | OPGC 5425 |
| 181 | OPGC 5380 | CBG2014-3334 | Asclepias incarnata L. | Kansas, United States | OPGC | | Not Available | 2015 | | | | | | | Wild material | | 1932044 | OPGC 5380 |
| 182 | OPGC 5359 | WY930-72 | Asclepias speciosa Torr. | Colorado, United States | OPGC |  | Not Available | 2015 | | | | | | | Wild material | | 1930414 | OPGC 5359 |
| 183 | S9 132 research | | Asclepias syriaca L. | | | | Historic | 2015 | | | | | | | | An accession used only for order items that do not have accessions linked to them. | 1928664 | S9 132 research |
| 184 | OPGC 4257 | NCA-15 | Asclepias sp. | California, United States | OPGC | | Not Available | 2015 | COLLECTED | 9/12/2015 12:00:00 AM | Along the banks of the middle fork of the Smith River at Gasquet, CA. | 41.10208100, -122.70638100 | 762 | | Wild material | | 1946818 | OPGC 4257 |
| 185 | OPGC 4263 | OPGC 4263 | Asclepias sp. | California, United States | OPGC | | Not Available | 2015 | COLLECTED | 9/12/2015 12:00:00 AM | Along the banks of Tangle Blue creek, approximately 1 mi north of Coffee Creek village. | 41.50471800, -122.90728000 | 914 | | Wild material | | 1946824 | OPGC 4263 |
| 186 | OPGC 4264 | OPGC 4264 | Asclepias sp. | California, United States | OPGC | | Not Available | 2015 | COLLECTED | 9/10/2015 12:00:00 AM | Along Rt 3 near Greenview, CA. Potential roadside weed from adjacent agricultural fields (forages). | 40.96186800, -122.73510800 | 91 | | Wild material | | 1946825 | OPGC 4264 |
| 187 | OPGC 5329 | CBG-2557 | Asclepias sullivantii Engelm. ex A. Gray | Kansas, United States | OPGC |  | Not Available | 2015 | COLLECTED | 08/25/2013 | | | 387 | | Wild material | | 1926163 | OPGC 5329 |
| 188 | OPGC 5330 | CBG-2585 | Asclepias incarnata L. subsp. incarnata | South Dakota, United States | OPGC |  | Not Available | 2015 | COLLECTED | 09/10/2013 | 1) From the intersection of Hwy 18 and Hwy 71 south of Hot Springs, SD, drive 6.7 miles south on Hwy 71 to the left (east) turn on Sheps Canyon Rd for Angostura Reservoir. Drive approximately 3.4 miles east to wetland alongside road below chalk cliffs. 2) Along Hwy 79, 8 miles north of Hot Springs | | 1023 | | Wild material | | 1926164 | OPGC 5330 |
| 189 | OPGC 5331 | CBG-2592 | Asclepias speciosa Torr. | South Dakota, United States | OPGC |  | Not Available | 2015 | COLLECTED | 09/11/2013 | 1) From the intersection of Hwy 18 and Hwy 71 south of Hot Springs, SD, drive 6.7 miles south on Hwy 71 to the left (east) turn on Sheps Canyon Rd for Angostura Reservoir. Drive approximately 3.4 miles east to wetland alongside road below chalk cliffs. 2) Along Toadstool Rd north of Crawford NE | | 1023 | | Wild material | | 1926068 | OPGC 5331 |
| 190 | OPGC 5305 | OR110-608 | Asclepias fascicularis Decne. | Oregon, United States | OPGC |  | Not Available | 2015 | | | | | | | Wild material | | 1922502 | OPGC 5305 |
| 191 | OPGC 5306 | OR110-637 | Asclepias speciosa Torr. | Oregon, United States | OPGC |  | Not Available | 2015 | | | | | | | Wild material | | 1922503 | OPGC 5306 |
| 192 | OPGC 5309 | MARSB-0103 | Asclepias syriaca L. | Delaware, United States | OPGC |  | Not Available | 2015 | | | | | | | Wild material | | 1922832 | OPGC 5309 |
| 193 | OPGC 5310 | MARSB-022 | Asclepias syriaca L. | Pennsylvania, United States | OPGC |  | Not Available | 2015 | | | | | | | Wild material | | 1922833 | OPGC 5310 |
| 194 | OPGC 5311 | MARSB-075 | Asclepias syriaca L. | New Jersey, United States | OPGC |  | Not Available | 2015 | | | | | | | Wild material | | 1922834 | OPGC 5311 |
| 195 | OPGC 5312 | MARSB-087 | Asclepias syriaca L. | New York, United States | OPGC |  | Not Available | 2015 | | | | | | | Wild material | | 1922835 | OPGC 5312 |
| 196 | OPGC 5291 | BASE-14 | Asclepias syriaca L. | United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1921436 | OPGC 5291 |
| 197 | OPGC 5292 | BASE-15 | Asclepias syriaca L. | United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1921437 | OPGC 5292 |
| 198 | OPGC 5293 | BASE-17 | Asclepias syriaca L. | United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1921438 | OPGC 5293 |
| 199 | OPGC 5294 | BASE-18 | Asclepias syriaca L. | United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1921439 | OPGC 5294 |
| 200 | OPGC 5295 | AZ040-0096 | Asclepias asperula (Decne.) Woodson | Arizona, United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1921689 | OPGC 5295 |
| 201 | NA 82149 | NA 82149 | Asclepias verticillata L. | Ohio, United States | NA | | Not Available | 2014 | COLLECTED | 09/24/2014 | Richard and Lucile Durrell Edge of Appalachia Preserve System: E. Lucy Braun Lynx Prairie Preserve. | 38.76379000, -83.41087000 | | Prairie. | | | 1950564 | NA 82149 |
| 202 | NA 82157 | NA 82157 | Asclepias verticillata L. | Ohio, United States | NA | | Not Available | 2014 | COLLECTED | 09/24/2014 | Richard and Lucile Durrell Edge of Appalachia Preserve System: E. Lucy Braun Lynx Prairie Preserve. | 38.76196000, -83.40916000 | | Prairie opening. | | | 1951329 | NA 82157 |
| 203 | NA 82158 | NA 82158 | Asclepias tuberosa L. | Ohio, United States | NA | | Not Available | 2014 | COLLECTED | 09/25/2014 | Arc of Appalachia Preserve System: Kamama Prairie Preserve. | 38.87644000, -83.39991000 | | Prairie. | | | 1953526 | NA 82158 |
| 204 | OPGC 5281 | NV030-762 | Asclepias fascicularis Decne. | Nevada, United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1920519 | OPGC 5281 |
| 205 | OPGC 5282 | NV030-816 | Asclepias speciosa Torr. | Nevada, United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1920520 | OPGC 5282 |
| 206 | OPGC 5271 | CBG-2350 | Asclepias tuberosa L. subsp. interior Woodson | Kansas, United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1919814 | OPGC 5271 |
| 207 | OPGC 5266 | OR110-540 | Asclepias fascicularis Decne. | Oregon, United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1919477 | OPGC 5266 |
| 208 | OPGC 5267 | AZ932-104 | Asclepias subverticillata (A. Gray) Vail | Arizona, United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1919478 | OPGC 5267 |
| 209 | OPGC 5261 | NV030-755 | Asclepias fascicularis Decne. | Nevada, United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1918297 | OPGC 5261 |
| 210 | OPGC 5262 | UT080-140 | Asclepias speciosa Torr. | Utah, United States | OPGC |  | Not Available | 2014 | | | | | | | Wild material | | 1918299 | OPGC 5262 |
| 211 | OPGC 5249 | CO932-306 | Asclepias speciosa Torr. | Colorado, United States | OPGC | | Not Available | 2013 | | | | | | | Wild material | | 1914339 | OPGC 5249 |
| 212 | OPGC 5250 | NM930N-86 | Asclepias speciosa Torr. | New Mexico, United States | OPGC | | Not Available | 2013 | | | | | | | Wild material | | 1914340 | OPGC 5250 |
| 213 | OPGC 5251 | WY0907-LINCOLN/SWEETWTR | Asclepias speciosa Torr. | Wyoming, United States | OPGC | | Not Available | 2013 | | | | | | | Wild material | | 1914341 | OPGC 5251 |
| 214 | OPGC 5252 | CA690-48 | Asclepias subulata Decne. | California, United States | OPGC | | Not Available | 2013 | | | | | | | Wild material | | 1914342 | OPGC 5252 |
| 215 | OPGC 5233 | OR931-113-KLICKITAT | Asclepias fascicularis Decne. | Washington, United States | OPGC |  | Not Available | 2013 | | | | | | | Wild material | | 1911216 | OPGC 5233 |
| 216 | OPGC 5215 | CBG-1834 | Asclepias hirtella (Pennell) Woodson | Missouri, United States | OPGC |  | Not Available | 2013 | | | | | | | Wild material | | 1908780 | OPGC 5215 |
| 217 | OPGC 5216 | CBG-1745 | Asclepias speciosa Torr. | Colorado, United States | OPGC |  | Not Available | 2013 | | | | | | | Wild material | | 1908781 | OPGC 5216 |
| 218 | OPGC 5217 | CBG-1793 | Asclepias speciosa Torr. | Colorado, United States | OPGC |  | Not Available | 2013 | | | | | | | Wild material | | 1908782 | OPGC 5217 |
| 219 | OPGC 5218 | CBG-1821 | Asclepias speciosa Torr. | Wyoming, United States | OPGC |  | Not Available | 2013 | | | | | | | Wild material | | 1908783 | OPGC 5218 |
| 220 | OPGC 5208 | NV030-671 | Asclepias speciosa Torr. | Nevada, United States | OPGC |  | Not Available | 2013 | | | | | | | Wild material | | 1907614 | OPGC 5208 |
| 221 | OPGC 4066 | PZ12-100 | Asclepias rubra L. | Florida, United States | OPGC | | Not Available | 2012 | COLLECTED | 08/07/2012 | | | | | Wild material | | 1907916 | OPGC 4066 |
| 222 | OPGC 5164 | WY020-11 | Asclepias speciosa Torr. | Wyoming, United States | OPGC |  | Not Available | 2012 | | | | | | | Wild material | | 1901099 | OPGC 5164 |
| 223 | OPGC 5165 | AZ932-98 | Asclepias tuberosa L. | United States | OPGC |  | Not Available | 2012 | | | | | | | Wild material | | 1901100 | OPGC 5165 |
| 224 | OPGC 3500 | OPGC 3500 | Asclepias asperula (Decne.) Woodson | Colorado, United States | OPGC | | Not Available | 2012 | DONATED | 02/23/2011 | | | | | | For research comparison, not available for distribution. | 1899764 | OPGC 3500 |
| 225 | OPGC 3501 | OPGC 3501 | Asclepias cordifolia (Benth.) Jeps. | Colorado, United States | OPGC | | Not Available | 2012 | DONATED | 02/23/2011 | | | | | | For research comparison, not available for distribution. | 1899765 | OPGC 3501 |
| 226 | OPGC 3502 | OPGC 3502 | Asclepias cryptoceras S. Watson | Colorado, United States | OPGC | | Not Available | 2012 | DONATED | 02/23/2011 | | | | | | For research comparison, not available for distribution. | 1899766 | OPGC 3502 |
| 227 | OPGC 3503 | OPGC 3503 | Asclepias cryptoceras S. Watson | Colorado, United States | OPGC | | Not Available | 2012 | DONATED | 02/23/2011 | | | | | | For research comparison, not available for distribution. | 1899767 | OPGC 3503 |
| 228 | OPGC 3504 | OPGC 3504 | Asclepias eriocarpa Benth. | Colorado, United States | OPGC | | Not Available | 2012 | DONATED | 02/23/2011 | | | | | | For research comparison, not available for distribution. | 1899768 | OPGC 3504 |
| 229 | OPGC 3505 | OPGC 3505 | Asclepias hallii A. Gray | Colorado, United States | OPGC | | Not Available | 2012 | DONATED | 02/23/2011 | | | | | | For research comparison, not available for distribution. | 1899769 | OPGC 3505 |
| 230 | OPGC 3506 | OPGC 3506 | Asclepias latifolia (Torr.) Raf. | Colorado, United States | OPGC | | Not Available | 2012 | DONATED | 02/23/2011 | | | | | | For research comparison, not available for distribution. | 1899770 | OPGC 3506 |
| 231 | OPGC 3508 | OPGC 3508 | Asclepias sp. | Colorado, United States | OPGC | | Not Available | 2012 | DONATED | 02/23/2011 | | | | | | For research comparison, not available for distribution. | 1899771 | OPGC 3508 |
| 232 | OPGC 5125 | 180229 | Asclepias asperula (Decne.) Woodson | Texas, United States | OPGC |  | Not Available | 2011 | | | | | | | Wild material | | 1895205 | OPGC 5125 |
| 233 | OPGC 5126 | 206063 | Asclepias oenotheroides Schltdl. & Cham. | Texas, United States | OPGC |  | Not Available | 2011 | | | | | | | Wild material | | 1895206 | OPGC 5126 |
| 234 | OPGC 5122 | NV030-497 | Asclepias fascicularis Decne. | Nevada, United States | OPGC |  | Not Available | 2011 | | | | | | | Wild material | | 1893383 | OPGC 5122 |
| 235 | OPGC 5123 | NM930N-12 | Asclepias speciosa Torr. | New Mexico, United States | OPGC |  | Not Available | 2011 | | | | | | | Wild material | | 1893386 | OPGC 5123 |
| 236 | OPGC 3545 | 374 | Asclepias incarnata L. | New York, United States | OPGC | | Not Available | 2011 | COLLECTED | 09/14/2011 | Watts Flats Wildlife Management Area, Chautauqua County. | 42.03600000, -79.42400000 | 439 | Marsh. Associated with Ilex verticillata, Spiraea alba, Viburnum cassinoides, Viburnum dentatum, and Viburnum lentago. | Wild material | | 1891438 | OPGC 3545 |
| 237 | OPGC 3139 | OPGC 3139 | Asclepias fascicularis Decne. | Oregon, United States | OPGC | | Not Available | 2010 | DONATED | 10/27/2010 | | | | | | For research comparison, not available for distribution. | 1866342 | OPGC 3139 |
| 238 | OPGC 3213 | TX-34 | Asclepias longifolia Michx. | Texas, United States | | | Historic | 2010 | COLLECTED | 05/27/2010 | Upper West Gulf Coastal Plain. Hardin County. Roadside along 105 at Hardin and Liberty County Line. In bar ditch along 105. | 30.25316700, -94.64480600 | 30 | | Wild material | Plants to 60 cm, long linear leaves, no flowers observed. | 1897313 | OPGC 3213 |
| 239 | TARS 18160 | Milkweed | Asclepias curassavica L. | Puerto Rico, United States | MAY | | Not Available | 2010 | DONATED | 2009 | | | | | | | 1844200 | TARS 18160 |
| 240 | OPGC 3147 | OPGC 3147 | Asclepias exaltata L. | West Virginia, United States | OPGC | | Not Available | 2010 | DONATED | 05/09/2010 | | | | | Wild material | For research comparison, not available for distribution. | 1865743 | OPGC 3147 |
| 241 | OPGC 3148 | OPGC 3148 | Asclepias tuberosa L. | West Virginia, United States | OPGC | | Not Available | 2010 | DONATED | 05/09/2010 | | | | | Wild material | For research comparison, not available for distribution. | 1865745 | OPGC 3148 |
| 242 | OPGC 3149 | OPGC 3149 | Asclepias quadrifolia Jacq. | West Virginia, United States | OPGC | | Not Available | 2010 | DONATED | 05/09/2010 | | | | | Wild material | For research comparison, not available for distribution. | 1865747 | OPGC 3149 |
| 243 | OPGC 5115 | 415949 | Asclepias latifolia (Torr.) Raf. | Colorado, United States | OPGC |  | Not Available | 2009 | | | | | | | Wild material | | 1826887 | OPGC 5115 |
| 244 | OPGC 5116 | 421528 | Asclepias subverticillata (A. Gray) Vail | Utah, United States | OPGC |  | Not Available | 2009 | | | | | | | Wild material | | 1826948 | OPGC 5116 |
| 245 | OPGC 3052 | JDC/AI/2009/065/215 | Asclepias incarnata L. | Illinois, United States | OPGC | | Not Available | 2009 | COLLECTED | 09/25/2009 | Four Corners Road, north from Illinois Highway 84, NW 1/4 of SW 1/4 of Section 36, T26N, R2E, Blackhawk (IL-IA) Quad, Jo Daviess County. | 42.20500000, -90.22944444 | 192 | Roadside along ditch. Associated with Andropogon gerardii, Convovulus sepium, Spiraea alba, Toxicodendron radicans, and Vitis riparia. | Wild material | | 1819708 | OPGC 3052 |
| 246 | OPGC 5111 | CO932-160 | Asclepias subverticillata (A. Gray) Vail | Colorado, United States | OPGC |  | Not Available | 2009 | | | | | | | Wild material | | 1802189 | OPGC 5111 |
| 247 | OPGC 2887 | 203432 | Asclepias fascicularis Decne. | Oregon, United States | OPGC |  | Not Available | 2007 | COLLECTED | 10/04/2003 | | | 358 | | Wild material | | 1718895 | OPGC 2887 |
| 248 | NA 75954 | NA 75954 | Asclepias incarnata L. | | NA | | Not Available | 2006 | | | | | | | | | 1951466 | NA 75954 |
| 249 | OPGC 2422 | OPGC 2422 | Asclepias viridiflora Raf. | | | | Historic | 2005 | | | | | | | | | 1691039 | OPGC 2422 |
| 250 | OPGC 2459 | KT 2 | Asclepias tuberosa L. | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 10/04/2005 | Kitty Todd Nature Preserve. Oak Openings Region, Lucas County, southwest of Toledo - managed by the Nature Conservancy | 41.61833333, -83.79166667 | 61 | Black oak savanna | Wild material | | 1691076 | OPGC 2459 |
| 251 | OPGC 2442 | GC 11 | Asclepias tuberosa L. | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 09/21/2005 | Green Camp Railroad Prairie, managed by the Marion County Historical Society, Marion County, | 40.54833333, -83.19138889 | 284 | | Wild material | | 1691059 | OPGC 2442 |
| 252 | OPGC 2393 | EOA Sept 7 05 7 | Asclepias viridiflora Raf. | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 09/07/2005 | Edge of Appalachia Preserve, managed by The Nature Conservancy, Adams County | 38.77583333, -83.43611111 | | Xeric limestone prairie | Wild material | | 1691013 | OPGC 2393 |
| 253 | OPGC 2410 | EOAL Sept 05 10 | Asclepias viridiflora Raf. | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 09/07/2005 | Lynx Prairie, Edge of Appalachia Preserve, managed by The Nature Conservancy, Adams County | 38.76250000, -83.40111111 | | Cedar barrens remnant, xeric limestone prairie | Wild material | | 1691028 | OPGC 2410 |
| 254 | OPGC 2418 | EOAL Sept 05 18 | Asclepias verticillata L. | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 09/07/2005 | Lynx Prairie, Edge of Appalachia Preserve, managed by The Nature Conservancy, Adams County | 38.76277778, -83.41055556 | | Cedar barrens remnant, xeric limestone prairie | Wild material | | 1691035 | OPGC 2418 |
| 255 | OPGC 2421 | EOAHP Sept 05 2 | Asclepias tuberosa L. | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 09/07/2005 | Hanging Prairie, Edge of Appalachia Preserve, managed by The Nature Conservancy, Adams County | 38.75083333, -83.44250000 | | | Wild material | | 1691038 | OPGC 2421 |
| 256 | OPGC 2424 | EOAHP Sept 05 5 | Asclepias verticillata L. | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 09/07/2005 | Hanging Prairie, Edge of Appalachia Preserve, managed by The Nature Conservancy, Adams County | 38.75083333, -83.44250000 | | | Wild material | | 1691041 | OPGC 2424 |
| 257 | OPGC 2362 | JUL 05 ALP 1 | Asclepias viridis Walter | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 07/13/2005 | Adams Lake Prairie State Nature Preserve, within Adams Lake State Park, Adams County | 38.81083333, -83.52944444 | | | Wild material | | 1690982 | OPGC 2362 |
| 258 | OPGC 2369 | JUL 05 CP 3 | Asclepias viridis Walter | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 07/13/2005 | Chaparral Prairie State Nature Preserve, Adams County | 38.84055556, -83.57416667 | | | Wild material | | 1690989 | OPGC 2369 |
| 259 | OPGC 2372 | JUL 05 JR 1 | Asclepias viridis Walter | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 07/13/2005 | Johnson Ridge State Nature Preserve, Adams County | 38.85638889, -83.53472222 | | | Wild material | | 1690992 | OPGC 2372 |
| 260 | OPGC 2323 | AH 2 | Asclepias viridis Walter | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 06/27/2005 | Appalachian Hwy. Adams County | 38.97555556, -83.33888889 | 278 | | Wild material | | 1690946 | OPGC 2323 |
| 261 | OPGC 2327 | PRN 1 | Asclepias viridis Walter | Ohio, United States | OPGC | | Not Available | 2005 | COLLECTED | 06/27/2005 | Plum Run Road (North), Adams County | | | | Wild material | | 1690949 | OPGC 2327 |
| 262 | OPGC 2885 | 177618 | Asclepias cryptoceras S. Watson | Oregon, United States | OPGC |  | Not Available | 2005 | COLLECTED | 07/01/2002 | | | 1066 | Sage & Peraphyllum bald. Associated with Peraphyllum ramosissimum, Eriogonum microthecum & Purshia tridentata. | Wild material | Forb 0.3 meters tall. | 1674018 | OPGC 2885 |
| 263 | OPGC 2886 | 204266 | Asclepias fascicularis Decne. | California, United States | OPGC |  | Not Available | 2005 | COLLECTED | 09/09/2003 | | | 1534 | Wet meadow. Associated with Helianthus uttallii, Aster ascendens, Rosa woodsii var. ultramontana, Muhlenbergia asperifolia, Salix exigua, Salix laevigata, Juncus balticus, Solidago canadensis and Artemisia douglasiana. | Wild material | Forb 0.9-1.5 meters tall. | 1674357 | OPGC 2886 |
| 264 | OPGC 2888 | 177434 | Asclepias speciosa Torr. | Idaho, United States | OPGC |  | | 2005 | COLLECTED | 09/13/2002 | | | 700 | Pond edge. Associated with Typha latifolia, Helianthus annuus, Kochia scoparia, Melilotus alba, Setaria viridis. | Wild material | Forb .3-1.2 meters tall. | 1674001 | OPGC 2888 |
| 265 | OPGC 2889 | 204727 | Asclepias speciosa Torr. | Oregon, United States | OPGC |  | Not Available | 2005 | COLLECTED | 09/23/2003 | | | 1389 | White oak hills. | Wild material | Forb 0.6 meters tall. | 1674379 | OPGC 2889 |
| 266 | OPGC 2223 | OPGC 2223 | Asclepias syriaca L. | Illinois, United States | OPGC | | Not Available | 2004 | COLLECTED | 11/11/2004 | 8720 Country Shire Lane, Spring Grove | 42.43138889, -88.25555556 | | | Wild material | 2.5 to 4 feet tall. | 1690855 | OPGC 2223 |
| 267 | OPGC 1726 | J1 | Asclepias syriaca L. | Pennsylvania, United States | OPGC | | Not Available | 2004 | COLLECTED | 11/06/2004 | Fisher, Pennsylvania, Old State Road and Hudson Drive; Ehrenberger family property. | 41.24944444, -79.24888889 | 509 | Disturbed area, lots of prairie plants, edge of old farm field. Full sun, well drained. | Wild material | Round clusters of light pink flowers. 3.5-4" long pods filled with silky seeds; 200 plants in population, 100 plants sampled. | 1690400 | OPGC 1726 |
| 268 | OPGC 2571 | OPGC 2571 | Asclepias incarnata L. | Ohio, United States | OPGC | | Not Available | 2004 | DONATED | 11/05/2004 | | | | | Wild material | | 1717051 | OPGC 2571 |
| 269 | OPGC 2004 | LC 24 | Asclepias incarnata L. | Ohio, United States | OPGC | | Not Available | 2004 | COLLECTED | 10/19/2004 | Louis Campbell State Nature Preserve, Lucas County | 41.59083333, -83.76194444 | | | Wild material | | 1690662 | OPGC 2004 |
| 270 | OPGC 2040 | IR 60 | Asclepias incarnata L. | Ohio, United States | OPGC | | Not Available | 2004 | COLLECTED | 10/19/2004 | Irwin Prairie State Nature Preserve, Lucas County | 41.65722222, -83.78194444 | | | Wild material | | 1690693 | OPGC 2040 |
| 271 | OPGC 1936 | CP1 | Asclepias syriaca L. | Ohio, United States | OPGC | | Not Available | 2004 | COLLECTED | 10/07/2004 | Chaparral Prairie State Nature Preserve, Adams County, 3 miles NW of West Union | 38.83583333, -83.57361111 | | Cedar barrens prairie. 67 acre total area. Sun. Slope: Slight. | Wild material | 4-5'. Sample size: 10. Population size: 200. Site size (sqm): 100. | 1690598 | OPGC 1936 |
| 272 | OPGC 1865 | SC 10 | Asclepias syriaca L. | Ohio, United States | OPGC | | Not Available | 2004 | COLLECTED | 09/30/2004 | Smith Cemetery State Nature Preserve, Madison County. West of Columbus on state route 161, South on Kramer Rd, West on Boyd Rd. | 40.10305556, -83.32416667 | 294 | Drainage(1-well, 4-poor): 3 Full sun. Slight slope, south facing. Small prairie remnant in pioneer cemetery, total land area approx 300 ft x 300 ft. Surrounded by farm fields. | Wild material | Dull purplish-pink flowers, fragrant. Curved seed pod. Sample size: 10. Population size: 10. Site size (sqm): 3. | 1690530 | OPGC 1865 |
| 273 | OPGC 1880 | BC 13 | Asclepias syriaca L. | Ohio, United States | OPGC | | Not Available | 2004 | COLLECTED | 09/30/2004 | Bigelow Cemetery State Nature Preserve, Madison County. State route 161 West from Columbus, South on Rosedale Road | 40.10972222, -83.41916667 | 301 | Drainage(1-well, 4-poor): 3 Full sun. Slope: None. Small prairie remnant in pioneer cemetery, total land area approx 100 m . Surrounded by farm fields, road. | Wild material | Brownish-pink flower. Pods with warty surface. Coarse. Common. Sample size: 5. Population size: 10. Site size (sqm): 5. | 1690544 | OPGC 1880 |
| 274 | OPGC 1847 | ODNR 51 | Asclepias amplexicaulis Sm. | Ohio, United States | OPGC | | Not Available | 2004 | COLLECTED | 07/08/2004 | 1/4 mile South of Monclova Rd. and Girdham Rd., about 100 yards east of road, Oak Openings - managed by Toledo Area Metroparks, Lucas County | 41.55527778, -83.85083333 | | Drainage(1-well, 4-poor): 1 Full sun. Slight slope. Sandy dry field. Population size: 200. Site size (m ): 25. | Wild material | | 1690512 | OPGC 1847 |
| 275 | NSL 439903 | Glacial Lake Albany Germplasm | Asclepias tuberosa L. | New York, United States | NLGRP | | Not Available | 2004 | COLLECTED | PRE 2000 | Albany Pine Bush Reserve | | 300 | Albany Pine Bush Reserve, pine barrens | Wild material | Butterfly milkweed is a long lived, perennial forb in the milkweed family with a showy orange flower blooming late spring to September. This plant has 3 inch long seedpods with little white puffs of down attached to each seed. It has a large taproot and grows well on dry, well-drained, infertile soil. The genus Ascelepia is the sole food plants for monarch butterfly larvae. Butterfly milkweed can be utilized in landscape and restoration plantings on drier sites, meadows and roadsides. | 1694812 | NSL 439903 |
| 276 | OPGC 1018 | OPGC 1018 | Asclepias tuberosa L. | Wisconsin, United States | OPGC | | Not Available | 2004 | DONATED | 03/04/2004 | | | | | Wild material | | 1658929 | OPGC 1018 |
| 277 | NSL 423100 MSOS | LBJWC-40 | Asclepias asperula (Decne.) Woodson | Texas, United States | OPGC | | Not Available | 2002 | | | | | | | Wild material | | 1642570 | NSL 423100 MSOS |
| 278 | W6 17651 | Grif 985 | Asclepias syriaca L. | Maryland, United States | OPGC |  | | 1993 | DONATED | | | | | | Uncertain improvement status | | 1010543 | W6 17651 |
| 279 | W6 17652 | Grif 986 | Asclepias syriaca L. | Maryland, United States | OPGC | | Not Available | 1993 | DONATED | | | | | | Uncertain improvement status | | 1010544 | W6 17652 |
| 280 | W6 17653 | Grif 987 | Asclepias syriaca L. | Maryland, United States | OPGC | | Not Available | 1993 | DONATED | | | | | | Uncertain improvement status | | 1010558 | W6 17653 |
| 281 | W6 17654 | Grif 988 | Asclepias syriaca L. | Maryland, United States | OPGC | | Not Available | 1993 | DONATED | | | | | | Uncertain improvement status | | 1010559 | W6 17654 |
| 282 | W6 17655 | Grif 989 | Asclepias syriaca L. | Maryland, United States | OPGC | | Not Available | 1993 | DONATED | | | | | | Uncertain improvement status | | 1010571 | W6 17655 |
| 283 | W6 17656 | Grif 990 | Asclepias syriaca L. | Maryland, United States | OPGC | | Not Available | 1993 | DONATED | | | | | | Uncertain improvement status | | 1010572 | W6 17656 |
| 284 | W6 17657 | Grif 991 | Asclepias syriaca L. | Maryland, United States | OPGC | | Not Available | 1993 | DONATED | | | | | | Uncertain improvement status | | 1010580 | W6 17657 |
| 285 | NA 46252 | NA 46252 | Asclepias syriaca L. | | NA | | Not Available | 1980 | | | | | | | | | 1953043 | NA 46252 |