Synonyms: Eragrostis boliviensis; Eragrostis buchtienii; Eragrostis densissima; Eragrostis lehmannii; Eragrostis montufarii; Eragrostis olmedoi; Eragrostis setifolia (heterotypic); Eragrostis tenax (heterotypic); Eragrostis virescens f. major; Eragrostis virescens var. trachyphylla; Megastachya montufarii; Megastachya olmedi; Megastachya olmedoi; Megastachya pastoensis (homotypic); Megastachya tenax; Poa contracta (heterotypic); Poa montufarii; Poa olmedii; Poa olmedoi; Poa pastoensis (homotypic); Poa setifolia (heterotypic); Poa tenax (heterotypic)