Plants densely cespitose. Culms 20-60 cm, wiry, glabrous. Sheaths
smooth; ligules to 1.4 mm; blades to 45 cm long, to 4 mm wide, involute
and filiform, or folded. Inflorescence units 3-50+ per culm; peduncles
2-13.2 cm, with 1 rame; rames 2-4 cm, usually long-exserted at maturity;
internodes densely pubescent, hairs to 8 mm. Sessile spikelets 4-6
mm; lower glumes scabrous in the distal 1/2; awns 11-20 mm. Pedicellate
spikelets reduced to an awned or unawned glume, sterile. 2n = 40.
Andropogon gracilis grows on oölite in openings and rocky margins
of pine woodlands of southern Florida and the West Indies. Although not uncommon,
it is frequently overlooked. It has sometimes been placed in Schizachyrium because of its solitary rames.