Lower sheaths shorter or longer than the internodes,
glabrous; blades usually about 1 mm wide, usually not curling. Glumes
subequal, 8-9 mm; awns 12-18 mm, of equal thickness, spirally contorted
at the base, divergent.
Aristida purpurascens var. tenuispica grows in pine and oak woods,
prairies, and along roadsides, at low elevations and usually in sandy soils.
Within the Flora region, it grows on the coastal plain from North Carolina
to Mississippi. It also grows in Mexico and Honduras.