Annuals; culms 15 cm. to more than 1 m. or more long, erect or ascending from a decumbent base, straggling or even clambering, rooting at the lower nodes, freely branching, flattened, smooth and shining or rarely retrorsely scabrous below the nodes; sheaths usually shorter than the internodes, thin and rather loose, the margins ciliate toward the summit; ligule about 1.5 mm. long, erose; blades 5-10 cm. long, 6-20 cm. wide, thin, flat, pilose or papillose-pilose on both surfaces or nearly glabrous, the margins scabrous; panicles 5-12 cm. long, scarcely exserted; racemes 8-20, ascending or spreading, 2-4 cm. long, falling entire, the rachis 2-2.5 mm. wide, scabrous, densely pubescent at the base, extending beyond the spikelets; spikelets 2.3-2.5 mm. long, solitary, rather distant, oblong, glabrous, the glume wanting; fruit as long as the sterile lemma, white, smooth and shining.