Culms 60-140 cm, erect. Blades to 31 cm long, 10-15 mm wide, usually folded, apices obtuse. Panicles with 10-36 branches; branches 6-17 cm, flexible. Spikelets 2.4-3 mm; florets 2 (3). Lower glumes (1.2) 1.5-2 mm, lanceolate, apices acute; upper glumes 1.6-2.6 mm, narrowly oblong, apices truncate or bilobed, awned, awns 0.3-0.6 mm; calluses with a few hairs, hairs about 0.3 mm; lowest lemmas (2.2) 2.5-2.9 mm, lanceolate, not strongly keeled, keels glabrous, lateral-veins with strongly spreading, white, 1-1.8 mm hairs, apices acute to mucronate; second lemmas 1.2-2 mm, oblanceolate, apices obtuse, third rudimentary lemma occasionally present. Caryopses 1.1-1.2 mm. 2n = 40.
Calif., Fla., Tex., Ga.
Eustachys distichopbylla is native to South America, but is now established along sandy roadsides, fields, and waste areas in the southern United States.
"decumbent" is not a number.