| Tripsacum fasciculatum Trin. ex Asch. | Tripsacum laxum Nash | | | Tripsacum fasciculatum Trin. ex Asch. | Tripsacum laxum Nash | 40490 | 40494 |
| Tripsacum lanceolatum Rupr. ex E. Fourn. | | a | | Tripsacum lanceolatum Rupr. ex E. Fourn. | | 40492 | |
| Tripsacum laxum Nash | | a | | Tripsacum laxum Nash | | 40494 | |
| Tripsacum jalapense de Wet & Brink | | a | | Tripsacum jalapense de Wet & Brink | | 319452 | |
| Tripsacum maizar Hern.-Xol. & Randolph | | a | | Tripsacum maizar Hern.-Xol. & Randolph | | 319462 | |
| Tripsacum pilosum Scribn. & Merr. | | a | | Tripsacum pilosum Scribn. & Merr. | | 319463 | |
| Tripsacum pilosum Scribn. & Merr. var. pilosum | | a | i | Tripsacum pilosum Scribn. & Merr. var.pilosum | | 319464 | |
| Tripsacum pilosum Scribn. & Merr. var. guatemalense de Wet & Brink | | a | i | Tripsacum pilosum Scribn. & Merr. var.guatemalense de Wet & Brink | | 319465 | |