Annual. Culms robust, erect, up to 150 cm, nodes glabrous. Leaf sheaths glabrous or pubescent, ciliate; leaf blades linear-lanceolate, 15–45 × 0.6–2 cm, usually glabrous; ligule 1–3 mm. Panicle dense, lobed, 6–40 × 0.5–5 cm, very variable, erect or pendent when mature; spikelets subtended by several bristles 1–5 times spikelet length; axis villous. Spikelets elliptic to ovate or subglobose, 2–3 mm, yellow, brown, orange or purple; lower glume 1/3–1/2 as long as spikelet; upper glume about as long as spikelet, 5–7(–9)-veined, obtuse; lower lemma equal to spikelet, 5–7-veined; lower palea absent or narrow, up to 1/2 as long as lemma; upper floret yellow or orange-yellow, oblong or ovate-oblong, cartilaginous, deciduous at maturity, finely rugose to smooth and shiny. Fl. and fr. summer to autumn. 2n = 18.
"Vegetatively like the larger forms of no. 5 [Setaria viridis (L.) P. Beauv.], with lobulate infls, but with larger spikelets ca 3 mm, the fertile lemma smooth and shiny, disarticulating above the more persistent glumes and sterile lemma; sterile palea half as long as its lemma, which is usually shorter than the fertile lemma; 2n=18. Old-World cultigen, thought to be derived from no. 5, cult. for fodder or grain, and occasionally found as a weed nearly throughout our range."
Annual, culms erect, solitary to densely tufted, up to 1.5 m high. Leaf blades 150-450 mm long, 6-20 mm wide, leaves mainly cauline. Culm nodes glabrous. Spikelets 2.0-3.5 mm long. Panicle spike-like, 8-24 mm wide; spikelets disarticulating above glumes; lower glume 3-nerved; lower lemma smooth.
Annual 350-1500 mm high; leaves mainly cauline; culm erect, solitary to densely tufted, node glabrous. Leaf blade 150-450 x 6-20 mm, expanded, linear, glabrous, usually scabrid. Inflorescence 8-24 mm wide, spike-like; bristles 2-5, up to 15 mm long, slender, scabrid, purple or yellow. Spikelet 2.0-3.5 mm long; lower floret persistent, upper floret reluctantly disarticulating; lower glume 3-nerved; upper glume 5-7-nerved; lower floret usually reduced to a lemma, rarely with a minute palea; upper lemma smooth, shiny or rugulose; anther 0.5-1.0 mm long.
Annual; up to 1.5 m high; solitary to densely tufted. Culm nodes glabrous; leaves mainly cauline. Leaf blades 150-450 x 6-20 mm. Flowers: panicle spike-like; 8-24 mm wide; spikelets 2.0-3.5 mm long; lower floret persistent; upper floret reluctantly disarticulating at maturity; bristles 2-5; antrorsely barbed; lower glume 3-nerved; upper glume 5-7-nerved; upper lemma smooth or rugulose; lower palea absent or very reduced.
In gardens or cultivation and other disturbed areas.
Cultivated; often as an escape from cultivation, in gardens and other disturbed areas.
Naturalised from Asia. Tropical and subtropical regions worldwide. L, LIM, G, M, FS, KZN, NC, WC, EC.