Helonias graminea
| Helonias graminea Ker Gawler, Bot. Mag. 39: pl. 1599. 1813. | | |
Stenanthium angustifolium
| Stenanthium angustifolium (Pursh) Kunth, Enum. Pl. 4: 190. 1843. | BASIONYM: Veratrum angustifolium Pursh 1814. | |
Stenanthium gramineum var. micranthum
| Stenanthium gramineum (Ker Gawler) Morong, var. micranthum Fernald, Rhodora 48: 148. 1946. | | TYPE: SOUTH CAROLINA: Greenville Co.: Caesar's Head, 28 Jul 1881, Smith s.n. (holotype: GH). |
Stenanthium gramineum var. typicum
| Stenanthium gramineum (Ker Gawler) Morong, var. typicum Fernald, Rhodora 48: 151. 1946, nom. inadmiss. | BASIONYM: Stenanthium gramineum (Ker Gawler) Morong 1894; Helonias graminea Ker Gawler 1813. | |
Veratrum angustifolium
| Veratrum angustifolium Pursh, Fl. Amer. Sept. 242. 1814. | | TYPE: "Virginia and Carolina", |
Xerophyllum gramineum
| Xerophyllum gramineum (Ker Gawler) Nuttall, Gen. N. Amer. Pl. 1: 235. 1818. | BASIONYM: Helonias graminea Ker Gawler 1813. | |
Stenanthium gramineum forma robustum
| Stenanthium gramineum (Ker Gawler) Morong, forma robustum (S. Watson) E. J. Palmer & Steyermark, Ann. Missouri Bot. Gard. 22: 500. 1935. | BASIONYM: Stenanthium robustum S. Watson 1879. | |
Stenanthium gramineum var. robustum
| Stenanthium gramineum (Ker Gawler) Morong, var. robustum (S. Watson) Fernald, Rhodora 48: 148. 1946. | BASIONYM: Stenanthium robustum S. Watson 1879. | |
Stenanthium robustum
| Stenanthium robustum S. Watson, Proc. Amer. Acad. Arts 14: 278. 1879. | | TYPE: PENNSYLVANIA: Clarion Co.: Sligo Furnace, Aug 1859, Lowrie s.n. (lectotype: GH). Lectotypified by Fernald, Rhodora 48: 149. 1946. |