| 0 | PI 702690 | MARSB-175 | Chasmanthium laxum (L.) H. O. Yates | Delaware, United States | S9 |  | | 2019 | | | | | | | Wild material | | 2097507 | PI 702690 |
| 1 | PI 702691 | MARSB-322 | Chasmanthium laxum (L.) H. O. Yates | New Jersey, United States | S9 |  | | 2019 | | | | | | | Wild material | | 2097574 | PI 702691 |
| 2 | PI 702692 | MARSB-332 | Chasmanthium laxum (L.) H. O. Yates | New Jersey, United States | S9 |  | | 2019 | | | | | | | Wild material | | 2097581 | PI 702692 |
| 3 | PI 702693 | MARSB-338 | Chasmanthium laxum (L.) H. O. Yates | New Jersey, United States | S9 |  | | 2019 | | | | | | | Wild material | | 2097586 | PI 702693 |
| 4 | PI 702694 | MARSB-383 | Chasmanthium laxum (L.) H. O. Yates | New Jersey, United States | S9 |  | | 2019 | | | | | | | Wild material | | 2097606 | PI 702694 |
| 5 | PI 702695 | MARSB-502 | Chasmanthium laxum (L.) H. O. Yates | New Jersey, United States | S9 |  | | 2019 | | | | | | | Wild material | | 2097639 | PI 702695 |
| 6 | PI 702696 | MARSB-505 | Chasmanthium laxum (L.) H. O. Yates | New Jersey, United States | S9 |  | | 2019 | | | | | | | Wild material | | 2097642 | PI 702696 |
| 7 | PI 702697 | MARSB-526 | Chasmanthium laxum (L.) H. O. Yates | New Jersey, United States | S9 |  | Not Available | 2019 | | | | | | | Wild material | | 2097645 | PI 702697 |
| 8 | PI 702698 | MARSB-657 | Chasmanthium laxum (L.) H. O. Yates | Delaware, United States | S9 |  | | 2019 | | | | | | | Wild material | | 2097674 | PI 702698 |
| 9 | PI 703062 | MARSB-0104 | Chasmanthium laxum (L.) H. O. Yates | New Jersey, United States | S9 |  | | 2015 | COLLECTED | 10/16/2013 | | | 123 | | Wild material | | 1922849 | PI 703062 |
| 10 | PI 674905 | 245544 | Chasmanthium latifolium (Michx.) H. O. Yates | United States | S9 |  | | 2011 | COLLECTED | 10/05/2004 | | | | Gently rolling terrain | Wild material | | 1895229 | PI 674905 |
| 11 | PI 674906 | 286578 | Chasmanthium latifolium (Michx.) H. O. Yates | United States | S9 |  | | 2011 | COLLECTED | 11/20/2005 | | | | Sandy soil on top of coastal mud flat | Wild material | | 1895230 | PI 674906 |
| 12 | PI 436848 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 11/1975 | Smith Co., Texas | | | | | Collected by B. Mask. | 1331784 | PI 436848 |
| 13 | PI 436849 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 08/1978 | Victoria Co., Texas | | 15 | | | Collected by G. Reagor. | 1331785 | PI 436849 |
| 14 | PI 436850 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 09/1978 | Titus Co., Texas | | 89 | | | Collected by M. Johnson. | 1331786 | PI 436850 |
| 15 | PI 436851 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 08/1978 | Nacogdoches Co., Texas | | 82 | | | Collected by R. Fuentes. | 1331787 | PI 436851 |
| 16 | PI 436852 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 09/1978 | Hardin Co., Texas | | 8 | | | Collected by P. Waller. | 1331788 | PI 436852 |
| 17 | PI 436853 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 08/1978 | San Patricio Co., Texas | | 12 | | | Collected by J. Alderson. | 1331789 | PI 436853 |
| 18 | PI 436854 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 09/1978 | Harrison Co., Texas | | 102 | | | Collected by P. Leggett. | 1331790 | PI 436854 |
| 19 | PI 436855 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 09/1978 | Caldwell Co., Texas | | | | | Collected by R. Hilliard. | 1331791 | PI 436855 |
| 20 | PI 436856 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 11/1978 | Guadalupe Co., Texas | | 152 | | | | 1331792 | PI 436856 |
| 21 | PI 436857 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | 12/1978 | Comanche Co., Texas | | 439 | | | Collected by J. McEntire. | 1331793 | PI 436857 |
| 22 | PI 433972 | | Chasmanthium latifolium (Michx.) H. O. Yates | United States | | | Historic | 1979 | COLLECTED | | Boone Co., Arkansas | | | | | Collected by K. Blan. | 1328908 | PI 433972 |
| 23 | PI 414038 | OG-241 | Chasmanthium latifolium (Michx.) H. O. Yates | Georgia, United States | |  | Historic | 1976 | DONATED | 11/26/1976 | | | | | | Vegetable stock. | 1312315 | PI 414038 |
| 24 | PI 219393 | | Chasmanthium latifolium (Michx.) H. O. Yates | Kansas, United States | | | Historic | 1954 | COLLECTED | | Collected southwest of Pittsburg | | | | | | 1568303 | PI 219393 |
| 25 | PI 188227 | No. 528 | Chasmanthium latifolium (Michx.) H. O. Yates | Oklahoma, United States | | | Historic | 1950 | COLLECTED | 09/1949 | | | | | | | 1666804 | PI 188227 |
| 26 | PI 188228 | No. 1145 | Chasmanthium latifolium (Michx.) H. O. Yates | Kansas, United States | | | Historic | 1950 | COLLECTED | 09/1949 | | | | | | | 1666805 | PI 188228 |
| 27 | PI 111331 | | Chasmanthium latifolium (Michx.) H. O. Yates | Romania | | | Historic | 1935 | COLLECTED | | | | | | | | 1803726 | PI 111331 |
| 28 | W6 62223 | FWS0401-10 | Chasmanthium latifolium (Michx.) H. O. Yates | Georgia, United States | W6 | | Not Available | 2024 | | | | | | | | Black Boxed 2024 Seeds of Success- Incorporated into the collection 4/1/2025 | 2169554 | W6 62223 |
| 29 | W6 62224 | FWS0401-11 | Chasmanthium sessiliflorum (Poir.) H. O. Yates | Georgia, United States | W6 | | Not Available | 2024 | | | | | | | | Black Boxed 2024 Seeds of Success- Incorporated into the collection 4/1/2025 | 2169555 | W6 62224 |
| 30 | W6 62234 | FWS0401-7 | Chasmanthium sessiliflorum (Poir.) H. O. Yates | South Carolina, United States | W6 | | Not Available | 2024 | | | | | | | | Black Boxed 2024 Seeds of Success- Incorporated into the collection 4/1/2025 | 2169565 | W6 62234 |
| 31 | W6 62236 | FWS0401-9 | Chasmanthium latifolium (Michx.) H. O. Yates | South Carolina, United States | W6 | | Not Available | 2024 | | | | | | | | Black Boxed 2024 Seeds of Success- Incorporated into the collection 4/1/2025 | 2169567 | W6 62236 |
| 32 | W6 62243 | FWS0402-7 | Chasmanthium latifolium (Michx.) H. O. Yates | Arkansas, United States | W6 | | Not Available | 2024 | | | | | | | | Black Boxed 2024 Seeds of Success- Incorporated into the collection 4/1/2025 | 2169574 | W6 62243 |
| 33 | NA 85932 | NA 85932 | Chasmanthium latifolium (Michx.) H. O. Yates | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Chasmanthium latifolium. Spontaneously seeded in from somewhere; have been around the Yamaguchi Garden in the National Bonsai & Penjing Museum since at least 2015. | 2154520 | NA 85932 |
| 34 | NA 82323 | NA 82323 | Chasmanthium latifolium (Michx.) H. O. Yates | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Chasmanthium latifolium. Spontaneously appeared [in bed FV-R5]. Good fit with roadside swale environment. | 2152883 | NA 82323 |
| 35 | NA 81316 | NA 81316 | Chasmanthium latifolium (Michx.) H. O. Yates | | NA | | Not Available | 2023 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Chasmanthium latifolium. Form received: unknown propagule type. | 2152478 | NA 81316 |
| 36 | W6 59064 | NCBG-682 | Chasmanthium laxum (L.) H. O. Yates | Virginia, United States | W6 | | | 2021 | | | | | | | Wild material | | 2116377 | W6 59064 |
| 37 | W6 58607 | MARSB-485 | Chasmanthium laxum (L.) H. O. Yates | New Jersey, United States | W6 | | | 2021 | | | | | | | Wild material | tufted on short rhizomes. sheaths glabrous with ciliate margins. virgate inflorescence. spikelets v-shaped. widely spreading lemmas and paleas at maturity. | 2113537 | W6 58607 |
| 38 | W6 58651 | MARSB-654 | Chasmanthium laxum (L.) H. O. Yates | Delaware, United States | W6 | | | 2021 | | | | | | | Wild material | Small grass that has triangle shaped seed heads lining the upper stem. | 2113581 | W6 58651 |
| 39 | W6 57588 | NCBG-689 | Chasmanthium latifolium (Michx.) H. O. Yates | North Carolina, United States | W6 | | | 2019 | | | | | | | Wild material | | 2098512 | W6 57588 |
| 40 | NA 70102 | NA 70102 | Chasmanthium latifolium (Michx.) H. O. Yates | West Virginia, United States | NA | | Not Available | 2017 | COLLECTED | 09/1992 | | 38.13333000, -81.18333000 | 300 | | | | 1951477 | NA 70102 |
| 41 | W6 51690 | CBG-6495 | Chasmanthium latifolium (Michx.) H. O. Yates | Illinois, United States | S9 | | Not Available | 2016 | | | | | | | Wild material | | 1942820 | W6 51690 |
| 42 | W6 50773 | CBG2014-3353 | Chasmanthium latifolium (Michx.) H. O. Yates | Kansas, United States | S9 | | Not Available | 2015 | | | | | | | Wild material | | 1932059 | W6 50773 |
| 43 | NA 81707 | NA 81707 | Chasmanthium sessiliflorum (Poir.) H. O. Yates | Maryland, United States | NA | | Not Available | 2013 | COLLECTED | 11/04/2013 | Cedarville State Forest near Brandywine/Waldorf, MD, along power transmission line corridor. | 38.64018000, -76.83934000 | 61 | Under transmission lines next to sandy /gravelly road, generally an open grassland under lines, with oak pine forest adjacent. | | | 1952342 | NA 81707 |
| 44 | NA 83032 | 'River Mist' | Chasmanthium latifolium (Michx.) H. O. Yates | | NA | | Not Available | 2013 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Chasmanthium latifolium 'River Mist'. | 2153186 | NA 83032 |
| 45 | NA 81522 | NA 81522 | Chasmanthium sessiliflorum (Poir.) H. O. Yates | Maryland, United States | NA | | Not Available | 2013 | COLLECTED | 09/09/2013 | Cedarville State Forest, Green Trail. | 38.62259000, -76.81070000 | | Woodland bordering a trail in shady area, as well as in brighter low spots. | | | 1952302 | NA 81522 |
| 46 | NA 82826 | NA 82826 | Chasmanthium latifolium (Michx.) H. O. Yates | | NA | | Not Available | 2013 | | | | | | | Cultivar | Full name as recorded at U.S. National Arboretum: Chasmanthium latifolium. | 2153064 | NA 82826 |
| 47 | NA 81137 | NA 81137 | Chasmanthium sessiliflorum (Poir.) H. O. Yates | Maryland, United States | NA | | Not Available | 2012 | COLLECTED | 09/06/2012 | USDA-ARS Beltsville Area campus (BARC), near intersection of Beaver Dam Rd. and the Baltimore-Washington Parkway. | 39.02403000, -76.85796000 | | Powerline meadow, deciduous woodland edge, along forest road | | | 1952864 | NA 81137 |
| 48 | NA 81214 | NA 81214 | Chasmanthium sessiliflorum (Poir.) H. O. Yates | Maryland, United States | NA | | Not Available | 2012 | COLLECTED | 10/15/2012 | Beltsville Area Research Campus (BARC), Coniferous Research Forest power line, near electric pole #17. | 39.00825000, -76.84624000 | | | | | 1951221 | NA 81214 |
| 49 | NA 85030 | NA 85030 | Chasmanthium latifolium (Michx.) H. O. Yates | | NA | | Not Available | 2010 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Chasmanthium latifolium. Growing in Fern Valley bed FV-N-04. Seeded in from somewhere. Has been in this location about 8 years. [Received year of 2010 is just an estimate based on this statement.] | 2153973 | NA 85030 |
| 50 | OPGC 1798 | OPGC 1798 | Chasmanthium latifolium (Michx.) H. O. Yates | | | | Historic | 2004 | | | | | | | | | 1690467 | OPGC 1798 |
| 51 | NA 69771 | NA 69771 | Chasmanthium sessiliflorum (Poir.) H. O. Yates | | NA | | Not Available | 1998 | | | | | | | | | 1952777 | NA 69771 |