This name is accepted, but is also synonymized with the following taxa: Dinebra panicea subsp. brachiata
mucronate sprangeltop, more...
[Leptochloa filiformis var. humilior J. Presl, more]
Culms to 150 cm. Ligules 0.9-3.2 mm; blades 2-21 mm wide. Glumes usually not exceeding the florets, lanceolate to narrowly elliptic; lemmas 1.3-1.7 mm, shortly sericeous along the veins. Caryopses 0.9-1.2 mm, widely depressed obovate or obdeltate in cross section, usually with a narrow, shallow ventral groove, apices broadly obtuse to acute. 2n = 20.
Leptochloa panicea subsp. brachiata extends from the southern half of the United States to Argentina. It is common in disturbed and mesic agricultural sites.
From Flora of Indiana (1940) by Charles C. Deam
Infrequent in the counties along the Ohio River. It grows in sandy soil on the slope of the bank of the Ohio River where it is washed at flood stages. Also found in sandy, alluvial fields along the Ohio River, and rarely in a similar habitat away from the river. Usually rather plentiful where it occurs.