| Sorghastrum avenaceum (Michx.) Nash | Sorghastrum nutans (L.) Nash | | | Sorghastrum avenaceum(Michx.) Nash | Sorghastrum nutans(L.) Nash |
| Sorghastrum elliottii (C. Mohr) Nash | | a | | Sorghastrum elliottii(C. Mohr) Nash | |
| Sorghastrum friesii (Pilg.) Pilg. | | a | | Sorghastrum friesii(Pilg.) Pilg. | |
| Sorghastrum minarum (Nees) Hitchc. | | a | | Sorghastrum minarum(Nees) Hitchc. | |
| Sorghastrum nutans (L.) Nash | | a | | Sorghastrum nutans(L.) Nash | |
| Sorghastrum pellitum (Hack.) Parodi | Sorghastrum nutans (L.) Nash subsp. pellitum (Hack.) Burkart | | | Sorghastrum pellitum(Hack.) Parodi | Sorghastrum nutans(L.) Nash subsp. pellitum (Hack.) Burkart |
| Sorghastrum secundum (Elliott) Nash | | a | | Sorghastrum secundum(Elliott) Nash | |
| Sorghastrum setosum (Griseb.) Hitchc. | | a | | Sorghastrum setosum(Griseb.) Hitchc. | |
| Sorghastrum stipoides (Kunth) Nash | | a | | Sorghastrum stipoides(Kunth) Nash | |
| Sorghastrum nutans (L.) Nash subsp. pellitum (Hack.) Burkart | | a | i | Sorghastrum nutans(L.) Nash subsp. pellitum (Hack.) Burkart | |
| Sorghastrum bipennatum (Hack.) Pilg. | | a | | Sorghastrum bipennatum(Hack.) Pilg. | |
| Sorghastrum spp. | | a | | Sorghastrum spp. | |