| Schizachyrium paniculatum (Kunth) Herter, 1940 |
| Schizachyrium plumigerum (Ekman) Parodi, 1961 |
| Schizachyrium riedelii (Trin.) A. Camus, 1924 |
| Schizachyrium riedelii var. multirameum (Hack.) Henrard, 1943 |
| Schizachyrium salzmannii (Trin. ex Steud.) Nash, 1912 |
| Schizachyrium salzmannii subsp. imberbe (Hack.) Roberty, 1960 |
| Schizachyrium sanguineum (Retz.) Alston, 1931 |
| Schizachyrium sanguineum var. brevipedicellatum (Beal) S.L. Hatch, 1978 |
| Schizachyrium sanguineum var. brevipedicellatum subvar. feense (E. Fourn.) Roberty, 1960 |
| Schizachyrium sanguineum var. hirtiflorum (Nees) S.L. Hatch, 1984 |
| Schizachyrium sanguineum var. oligostachyum (Chapm.) S.L. Hatch, 1978 |
| Schizachyrium sanguineum var. sanguineum (Retz.) Alston, 1931 |
| Schizachyrium sanguineum var. sanguineum subvar. domingense (Spreng. ex Schult.) Roberty, 1960 |
| Schizachyrium scabriflorum (Hack.) A. Camus, 1924 |
| Schizachyrium schottii (Rupr. ex Hack.) Nash, 1912 |
| Schizachyrium scoparium (Michx.) Nash, 1903 |
| Schizachyrium scoparium f. calvescens (Fernald) C.F. Reed, 1989 |
| Schizachyrium scoparium f. villosissimum (Kearney) C.F. Reed, 1989 |
| Schizachyrium scoparium subsp. littorale (Nash) Gandhi & Smeins, 1996 |
| Schizachyrium scoparium subsp. neomexicanum (Nash) Gandhi & Smeins, 1996 |