Annual. Culms rambling, often rooting at lower nodes, 15–100 cm tall, nodes glabrous or pubescent. Leaves cauline; leaf sheaths puberulous or glabrous, ciliate on margins; ligule ca. 0.2 mm, a ciliolate membrane; leaf blades narrowly ovate to ovate, 5–10 × 1–3 cm, membranous, glabrous or pilose, cross veins present, base amplexicaul, apex finely acute to acuminate. Panicle oblong or ovate in outline, 5–15 cm, much branched; branches delicate, often tangled, glabrous or pilose, glandular patches present. Spikelets asymmetrically borne on the pedicels, ovate or elliptic in outline, 1.5–2 mm, sparsely puberulous to pilose; lower glume ovate, as long as spikelet, hyaline, 1–3-veined, separated by an internode; upper glume as long as spikelet, 5-veined; lower lemma similar to upper glume, palea well developed; upper floret white, scaberulous, shiny. Fl. and fr. May–Dec. 2n = 36.
Very rarely the outer spikelets of the panicle are long-hairy and apparently surrounded by a delicate halo.
A rambling annual 30–60 cm. high, with long aerial roots from the nodes
Annual; culms 15–100 cm. long, rambing, often rooting from the lower nodes.
Leaf-sheaths ciliately fringed; blades narrowly ovate to ovate, 5–10 cm. long, 10–25(–38) mm. wide, amplexicaul, thin, cross-veins present, glabrous or pilose, finely acute.
Panicle ovate, 5–15 cm. long, rarely more, delicately branched, the branches spreading and often appearing somewhat tangled.
Spikelets ovate, 1.5(–1.8) mm. long, asymmetrical, usually sparsely puberulous to pilose, slightly apiculate; lower glume hyaline, oblong, as long as the spikelet, (1–)3-nerved, separated from the rest of the spikelet by a short swollen internode; upper glume ovate, herbaceous, 5-nerved; lower lemma 5-nerved, sterile, its palea well developed; upper lemma pale, shining.
Spikelets 1.5–2 mm. long, ovate or ovate-elliptic, sparsely puberulous to pilose; inferior glume as long as the spikelet, 3-nerved; superior glume 5-nerved; inferior lemma 5-nerved, sterile, its palea present; superior lemma and palea pallid, glossy.
Annual; culms 15–100 cm. long, rambling, often rooting at the lower nodes.
Leaf laminae 5–10 cm. long and 10–25 mm. wide, thin amplexicaul, glabrous or pilose, cross-veins present, finely acute.