Plants perennial; rhizomatous and stoloniferous. Culms 50-250
cm, erect or decumbent, rooting or not at the lower nodes. Basal sheaths
glabrous or variously pubescent (pilose, rarely tomentose or with papillose-based
hairs); upper sheaths glabrous; ligules 0.8-2.5 mm; blades
6-15(30) cm long, 3.5-8.5(13) mm wide, glabrous adaxially, rarely hirsute, with
papillose-based hairs basally, margins scabridulous. Panicles with 2-18
spikelike primary branches, these digitate or with rachises to 6 cm; primary
branches 5-25 cm, axes wing-margined, wings about as wide as the midribs,
with spikelets in unequally pedicellate pairs; secondary branches rarely
present; shorter pedicels 0.2-0.3 mm; longer pedicels 1-1.5 mm.
Spikelets homomorphic, 2.5-3.5 mm long, 0.7-0.9 mm wide, lanceolate.
Lower glumes 0.2-0.5 mm, acute to truncate; upper glumes (1.2)1.6-2.3
mm, from 1/5 as long as to almost equaling the spikelets; lower lemmas
2.5-3.5 mm, 7-veined, veins unequally spaced, midvein and lateral veins scabrous
at least on the distal 1/2, margins and region between the inner 2 lateral veins
with straight, yellowish, 0.6-1 mm hairs; upper lemmas gray to tan at
maturity. 2n = 18, 34, 36, 45, 54, 72(-).
Digitaria milanjiana is native to tropical and subtropical Africa. It
has been found as an escape from experimental plantings in Florida.