Warty Panic Grass

Panicum verrucosum Muhl. Descr. Gram. 113. 1817
Panicum debile Ell. Bot. S. C. & Ga. 1: 129. 1816. Not P. debile Desf. 1798. Panicum umbraculum Bosc; Spreng. Syst. 1: 314, as synonym. 1825. Panicum rugosum Bosc; Spreng. Syst. 1: 314, as synonym. 1825.
Plants bright-green, solitary or few together, lax, at first erect but soon decumbent at base, and ascending or widely spreading; culms slender, 20-150 cm. high; leaf-sheaths shorter than the internodes, ciliate; blades thin, lax, flat, 5-20 cm. long, 4-10 mm. wide, somewhat narrowed toward the base, gradually narrowed to the acuminate apex, glabrous; panicles finally exserted, 5-30 cm. long, about as wide, diffuse, small panicles often produced at the lower nodes, at least the ultimate branchlets scabrous, the branches mostly solitary, the branchlets bearing a few short-pediceled spikelets, mostly in twos, toward the ends; spikelets 1.8-2.1 mm. long, about 1 mm. wide, elliptic-obovate, subacute; first glume one fourth the length of the spikelet or less; second glume and sterile lemma warty, glabrous, the glume shorter than the fruit at maturity; fruit 1.8-2 mm. long, 1 mm. wide, elliptic, acute.
Type locality: New Jersey.
Distribution : Massachusetts to Florida, and west to Texas ; northern Indiana.