Plants perennial; not rhizomatous. Culms 30-80 cm, sometimes erect,
usually decumbent and branching and rooting at the lower nodes, not branching
at the upper nodes. Sheaths of the lower leaves villous, those of the
upper leaves sometimes glabrous, those ofthe flag leaves without axillary panicles;
ligules 1.5-2 mm; blades 10-15 cm long, 2-7 mm wide, hirsute to
nearly glabrous. Panicles with 5-10 spikelike primary branches on 1-4
cm rachises; primary branches 5-10(13) cm, axes triquetrous, narrowly
winged, wings less than 1/2 as wide as the midribs, lower and middle portions
of the branches with paired spikelets; secondary branches rarely present.
Spikelets 2-3.6 mm, narrowly ovate-oblong, acute. Lower glumes
absent; upper glumes almost as long as the spikelets, 3(5)-veined, shortly
villous on the margins and sometimes between the margins; lower lemmas
similar to the upper glumes; upper lemmas gray or yellow, sometimes purple-tinged,
becoming purple at maturity. Caryopses narrowly oblong. 2n = 54.
Digitaria texana grows in sandy oak woods and prairies of southern Texas