Amianthium angustifolium
| Amianthium angustifolium (Michaux) A. Gray, Ann. Lyceum Nat. Hist. New York 4: 124. 1837. | Helonias angustifolia Michaux 1803. | |
Amianthium leimanthoides
| Amianthium leimanthoides A. Gray, Ann. Lyceum Nat. Hist. New York 4: 125. 1837. | | NEW JERSEY: Camden Co.: Near Haddington, 20 Jul 1837, Durand s.n. (lectotype: GH; isolectotype: NY). Lectotypified by Zomlefer & Judd, Novon 12: 304. 2002. |
Amianthum texanum
| Amianthum texanum (Bush) R. R. Gates, J. Linn. Soc., Bot. 44: 148. 1918. | Tracyanthus angustifolius (Michaux) Small, var. texanus Bush 1906. | |
Helonias angustifolia
| Helonias angustifolia Michaux, Fl. Bor.-Amer. 1: 212. 1803. | | SOUTH CAROLINA: Without data, Michaux s.n. (holotype: P). |
Melanthium densum
| Melanthium densum Desrousseaux, in Lamarck, Encycl. 4: 26. 1796. | | SOUTH CAROLINA: Without data, Fraser s.n. (holotype: P). |
Oceanoros leimanthoides
| Oceanoros leimanthoides (A. Gray) Small, Fl. S.E. U.S. 252, 1328. 1903. | Amianthium leimanthoides A. Gray 1837. | |
Stenanthium leimanthoides
| Stenanthium leimanthoides (A. Gray) Zomlefer & Judd, Novon 12: 304. 2002. | Amianthium leimanthoides A. Gray 1837. | |
Tracyanthus angustifolius var. texanus
| Tracyanthus angustifolius (Michaux) Small, var. texanus Bush, Rep. (Annual) Missouri Bot. Gard. 17: 119. 1906. | | TEXAS: Smith Co.: Swan, 16 May 1902, Reverchon 2782 (holotype: MO). |
Tracyanthus texanus
| Tracyanthus texanus (Bush) Small, Fl. S.E. U.S., ed. 2. 1329. 1913. | Tracyanthus angustifolius (Michaux) Small, var. texanus Bush 1906. | |
Tracyanthus angustifolius
| Tracyanthus angustifolius (Michaux) Small, Fl. S.E. U.S. 251, 1328. 1903. | Helonias angustifolia Michaux 1803. | |
Zigadensus densum
| Zigadenus densus (Desrousseaux) Fernald, Rhodora 42: 254. 1940. | Melanthium densum Desrousseaux 1796. | |
Zigadenus leimanthoides
| Zigadenus leimanthoides (A. Gray) A. Gray, Manual, ed. 2. 476. 1856. | Amianthium leimanthoides A. Gray 1837. | |
Zigadenus angustifolius
| Zigadenus angustifolius (Michaux) S. Watson, Proc. Amer. Acad. Arts 14: 280. 1879. | Helonias angustifolia Michaux 1803. | |