Paul M. Peterson, Stephan L. Hatch and Alan S. Weakley
Plants not rhizomatous. Culms slender, 1-2(2.5) mm thick at the base. Uppermost sheaths 0.8-2.5 mm wide. Panicles with 16-36 spikelets per cm2when pressed. Fruits 1.1-1.7 mm.
Sporobolus compositus var. drummondii is most abundant in Kansas, Oklahoma, and Texas.