Plants cespitose, upper portion dense, cylindrical. Culms 50-120
cm; internodes not glaucous; branches mostly erect, straight. Sheaths
smooth; ligules 0.2-0.5 mm, ciliate, cilia 0.2-0.8 mm; blades 10-22
cm long, 1.2-2.6 mm wide, glabrous or sparsely pubescent, with spreading hairs.
Inflorescence units 3-11 per culm; subtending sheaths (2.8)4.1-5.8(7.2)
cm long, (3)4-4.7(5.8) mm wide; peduncles (9)14-31(65) mm, with 2 rames;
rames (1.5)2.4-3.6(4.2) cm, usually exserted at maturity, pubescence increasing
in density distally within each internode. Sessile spikelets (4)4.8-5(5.5)
mm; callus hairs 1.5-3.5 mm; keels of lower glumes scabrous only
above the midpoint; awns 11-23 mm; anthers 1, 1.2-2 mm, yellow.
Pedicellate spikelets vestigial or absent. 2n = 20.
Andropogon tracyi grows on sandhills, sandy pinelands, and scrublands of
the southeastern United States. It resembles A. longiberbis,
but usually differs in having sparsely pubescent blades and a more slender appearance.