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.
Ga., N.C., Ala., Miss., S.C., Fla.
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.
"decumbent" is not a number."elongated" is not a number.