Aristida purpurascens Poir.
Natural range: Widespread, North America to Mesoamerica
Habitat: Dry or moist soil.
Florida status: Native
Recognition: Awns equally divergent and nearly equally long. Blades flat, 2-3 mm wide, curling (narrower in var. tenuispica). Awns not contorted except in var. tenuispica.
Aristida purpurascens differs from A. palustris by having the lower glume < 9 mm long (vs. 9 mm or longer), a longer ligule (0.2 vs. 0.1 mm), and the central awn 8-25 (vs. 15-40) mm. Lateral awns are subequal to the central awn in both species. Aristida purpurascens differs further by tending toward curled (vs. not curled) leaf blades.