Tridens (plant)

Tridens is a genus of perennial grasses in the Poaceae family native to the Americas.

1. Tridens albescens (Vasey) Wooton & Standl. - southwest + south-central USA (AZ NM TX LA AR OK KS), Mexico (Chihuahua, Durango, Coahuila, Tamaulipas, Nuevo León)
2. Tridens ambiguus (Elliott) Schult. – pine barren fluffgrass - southeastern USA (TX LA MS AL GA FL SC NC)
3. Tridens brasiliensis (Nees ex Steud.) Parodi - Brazil, Paraguay, Uruguay, Argentina
4. Tridens buckleyanus (Vasey ex L.H.Dewey) Nash - Texas
5. Tridens carolinianus (Steud.) Henrard - southeastern USA (LA MS AL GA FL SC NC)
6. Tridens congestus (L.H.Dewey) Nash – pink fluffgrass USA (AZ TX)
7. Tridens eragrostoides (Vasey & Scribn.) Nash – lovegrass tridens - southern USA (TX AZ NM AL FL), Mexico, Cuba, Venezuela
8. Tridens flaccidus (Döll) Parodi - Brazil, Guyana, Venezuela, Colombia
9. Tridens flavus (L.) Hitchc. – purpletop - Ontario, eastern + central USA, Nuevo León
10. Tridens hackelii (Arechav.) Parodi - Brazil, Uruguay, Argentina
11. Tridens muticus (Torr.) Nash – slim tridens - southwestern + south-central USA (CA NV AZ UT CO NM TX OK KS MO AR LA), Mexico (Baja California, Sonora, Chihuahua, Durango, Coahuila, Zacatecas, Nuevo León, Querétaro, San Luis Potosí, Tamaulipas)
12. Tridens nicorae Anton - northern Argentina
13. Tridens × oklahomensis (Feath.) Feath. - Oklahoma (hybrid T. flavus × T. strictus)
14. Tridens riograndensis Acedo & Llamas - Rio Grande do Sul in Brazil
15. Tridens strictus (Nutt.) Nash – longspike tridens - southeastern + south-central USA (from TX to FL to IL + PA)
16. Tridens texanus (S. Watson) Nash - USA (TX NM), Mexico (Chihuahua, Durango, Coahuila, Nuevo León, Tamaulipas, San Luis Potosí)