Tridens is a genus of perennial grasses in the family Poaceae native to the Americas. Species * (Vasey) Wooton & Standl. - southwest + south-central USA (AZ NM TX LA AR OK KS), Mexico (Chihuahua, Durango, Coahuila, Tamaulipas, Nuevo León) * (Elliott) Schult. – pine barren fluffgrass - southeastern USA (TX LA MS AL GA FL SC NC) * (Nees ex Steud.) Parodi - Brazil, Paraguay, Uruguay, Argentina * (Vasey ex L.H.Dewey) Nash - Texas * (Steud.) Henrard - southeastern USA (LA MS AL GA FL SC NC) * (L.H.Dewey) Nash – pink fluffgrass USA (AZ TX) * (Vasey & Scribn.) Nash – lovegrass tridens - southern USA (TX AZ NM AL FL), Mexico, Cuba, Venezuela * (Döll) Parodi - Brazil, Guyana, Venezuela, Colombia * Tridens flavus (L.) Hitchc. – purpletop - Ontario, eastern + central USA, Nuevo León