Vilfa clandestina (Biehler) Nees ex Steud. Sporobolus compositus var. clandestinus Sporobolus clandestinus var. canovirens Sporobolus canovirensNash Sporobolus asper var. clandestinus Sporobolus asper var. canovirens Muhlenbergia clandestina (Biehler) Trin. Agrostis clandestinaBiehler