| Schizachyrium cirratum (Hack.) Wooton & Standl. | | a | | Schizachyrium cirratum(Hack.) Wooton & Standl. | |
| Schizachyrium condensatum (Kunth) Nees | | a | | Schizachyrium condensatum(Kunth) Nees | |
| Schizachyrium hirtiflorum Nees | Schizachyrium sanguineum (Retz.) Alston | | | Schizachyrium hirtiflorumNees | Schizachyrium sanguineum(Retz.) Alston |
| Schizachyrium imberbe (Hack.) A. Camus | | a | | Schizachyrium imberbe(Hack.) A. Camus | |
| Schizachyrium obliquiberbe (Hack.) A. Camus | Schizachyrium fragile (R. Br.) A. Camus | | | Schizachyrium obliquiberbe(Hack.) A. Camus | Schizachyrium fragile(R. Br.) A. Camus |
| Schizachyrium microstachyum (Ham.) Roseng. et al. | | a | | Schizachyrium microstachyum(Ham.) Roseng. et al. | |
| Schizachyrium pachyarthron C. A. Gardner | | a | | Schizachyrium pachyarthronC. A. Gardner | |
| Schizachyrium scoparium (Michx.) Nash | | a | | Schizachyrium scoparium(Michx.) Nash | |
| Schizachyrium scoparium (Michx.) Nash var. littorale (Nash) Gould | Schizachyrium scoparium (Michx.) Nash subsp. littorale (Nash) Gandhi & Smeins | | i | Schizachyrium scoparium(Michx.) Nash var.littorale (Nash) Gould | Schizachyrium scoparium(Michx.) Nash subsp. littorale (Nash) Gandhi & Smeins |
| Schizachyrium scoparium (Michx.) Nash var. neomexicanum (Nash) Gould | Schizachyrium scoparium (Michx.) Nash subsp. neomexicanum (Nash) Gandhi & Smeins | | i | Schizachyrium scoparium(Michx.) Nash var.neomexicanum (Nash) Gould | Schizachyrium scoparium(Michx.) Nash subsp. neomexicanum (Nash) Gandhi & Smeins |
| Schizachyrium tenerum Nees | | a | | Schizachyrium tenerumNees | |
| Schizachyrium fragile (R. Br.) A. Camus | | a | | Schizachyrium fragile(R. Br.) A. Camus | |
| Schizachyrium sanguineum (Retz.) Alston | | a | | Schizachyrium sanguineum(Retz.) Alston | |
| Schizachyrium brevifolium (Sw.) Nees ex Buse | | a | | Schizachyrium brevifolium(Sw.) Nees ex Buse | |
| Schizachyrium maritimum (Chapm.) Nash | | a | | Schizachyrium maritimum(Chapm.) Nash | |
| Schizachyrium stoloniferum Nash | | a | | Schizachyrium stoloniferumNash | |
| Schizachyrium kelleri (Hack.) Stapf | | a | | Schizachyrium kelleri(Hack.) Stapf | |
| Schizachyrium rhizomatum (Swallen) Gould | | a | | Schizachyrium rhizomatum(Swallen) Gould | |
| Schizachyrium neomexicanum (Nash) Nash | Schizachyrium scoparium (Michx.) Nash subsp. neomexicanum (Nash) Gandhi & Smeins | | | Schizachyrium neomexicanum(Nash) Nash | Schizachyrium scoparium(Michx.) Nash subsp. neomexicanum (Nash) Gandhi & Smeins |
| Schizachyrium scoparium (Michx.) Nash subsp. littorale (Nash) Gandhi & Smeins | | a | i | Schizachyrium scoparium(Michx.) Nash subsp. littorale (Nash) Gandhi & Smeins | |
| Schizachyrium scoparium (Michx.) Nash subsp. neomexicanum (Nash) Gandhi & Smeins | | a | i | Schizachyrium scoparium(Michx.) Nash subsp. neomexicanum (Nash) Gandhi & Smeins | |
| Schizachyrium scoparium (Michx.) Nash subsp. divergens (Hack.) Gandhi & Smeins | | a | i | Schizachyrium scoparium(Michx.) Nash subsp. divergens (Hack.) Gandhi & Smeins | |
| Schizachyrium scoparium (Michx.) Nash subsp. scoparium | | a | i | Schizachyrium scoparium(Michx.) Nash subsp. scoparium | |
| Schizachyrium scoparium (Michx.) Nash var. divergens (Hack.) Gould | Schizachyrium scoparium (Michx.) Nash subsp. divergens (Hack.) Gandhi & Smeins | | i | Schizachyrium scoparium(Michx.) Nash var.divergens (Hack.) Gould | Schizachyrium scoparium(Michx.) Nash subsp. divergens (Hack.) Gandhi & Smeins |
| Schizachyrium littorale (Nash) E. P. Bicknell | Schizachyrium scoparium (Michx.) Nash subsp. littorale (Nash) Gandhi & Smeins | | | Schizachyrium littorale(Nash) E. P. Bicknell | Schizachyrium scoparium(Michx.) Nash subsp. littorale (Nash) Gandhi & Smeins |
| Schizachyrium paniculatum (Kunth) Herter | | a | | Schizachyrium paniculatum(Kunth) Herter | |