| Cyperaceae | |
Rhynchospora alba fo. alba
| | | |
| Cyperaceae | |
Rhynchospora alba var. fusca
| (L.) Vahl | Enum. Pl. 2: 236 | 1805 |
| Cyperaceae | ** |
Rhynchospora alba var. fusca
| (L.) Pursh | Fl. Amer. Sept. 1: 49 | 1813 |
| Cyperaceae | |
Rhynchospora alba var. kiusiana
| Makino | Bot. Mag. (Tokyo) 17: 191 | 1903 |
| Cyperaceae | |
Rhynchospora alba fo. laeviseta
| Gale | Rhodora 46(544): 123–124 | 1944 |
| Cyperaceae | |
Rhynchospora alba var. macra
| C.B. Clarke ex Britton | Trans. New York Acad. Sci. 11(3–5): 88 | 1892 |
| Cyperaceae | |
Rhynchospora alba var. meridiana
| H. Pfeiff. | Repert. Spec. Nov. Regni Veg. 33: 210 | 1933 |