Plants usually oblong in the upper portion, sometimes cylindrical. Culms 1.2-2.2 m; internodes glaucous. Sheaths (1.3)2.3-3.1(4.7) mm wide, usually smooth; ligules ciliate or not, cilia to 0.2 mm; blades glaucous, glabrous, smooth. Subtending sheaths of inflorescence units usually 2-2.5 mm wide; peduncles shorter than 10 mm; rames usually shorter than 2 cm, not exserted at maturity. Keels of lower glumes usually scabrous beyond midlength.

Andropogon glomeratus var. glaucopsis grows in flatwoods, bogs, ditches, swamps, pond margins, and swales of the southeastern coastal plain.