Culms 40-120 cm, branching at the upper nodes, glaucous. Ligules
1-2 mm; blades 10-20 cm long, 1.5-5 mm wide. Rames 4-10(12) cm;
internodes scabrous, glabrous or hirsute. Sessile spikelets 5-9
mm; lower glumes sparsely to densely hirsute on the back; awns
15-25 mm. Pedicels arcuate at maturity, ciliate on both edges distally.
Pedicellate spikelets 3-5 mm, staminate or sterile, awns 0.3-5 mm. 2n
= 40, 60, 70, 100.
In the Flora region, Schizachyrium sanguineum var. hirtiflorum
grows on rocky slopes and well-drained soils from Arizona to southwestern Texas
and Florida, and is considered a good forage species. Its range extends through
Central America to Chile, Paraguay, and Uruguay.