| Poaceae | |
Lithachne axillaris
| (Lam.) P. Beauv. | Ess. Agrostogr. 166, t. 24, f. 2 | 1812 |
| Poaceae | |
Lithachne horizontalis
| Chase | J. Washington Acad. Sci. 25(4): 189, f. 1 | 1935 |
| Poaceae | |
Lithachne humilis
| Soderstr. | Brittonia 32(4): 496–498, f. 1 | 1980 [1981] |
| Poaceae | ** |
Lithachne pauciflora
| (Sw.) P. Beauv. ex Poir. | Dict. Sci. Nat. (ed. 2) 27: 60 | 1823 |
| Poaceae | ! |
Lithachne pauciflora
| (Sw.) P. Beauv. | Ess. Agrostogr. 135, 168 | 1812 |
| Poaceae | |
Lithachne pinetii
| (C. Wright ex Griseb.) Chase | Proc. Biol. Soc. Washington 21: 182 | 1908 |