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Annual 150-300 mm high; stalked, crateriform glands on leaf margins and pedicels or absent. Leaf blade to 50(100) x to 3 mm, expanded; margins smooth or scabrid; sheath mouth with a ring of bristles. Inflorescence open, 50-100 x 40-90 mm, up to ±200 spikelets; pedicels glabrous or scaberulous; axils hairy. Spikelet 4-5 mm long; glumes acute to acuminate, greenish or yellow and purple, glabrous or scaberulous along keels; lemma 2.0-2.5 mm long, hairy; lateral awns 1-3 mm long, not reaching glume apices, central awn 4-12 mm long; palea glabrous or hairy; anthers 1.9-2.5 mm long.
Annual, up to 300 mm tall, with glandular or eglandular leaves and pedicels. Leaves linear, usually hairy, sheath mouth ringed with bristles; ligule a fringe of hairs. Inflorescence an open panicle, 50-100 mm long. Spikelets 3.3-5 mm long, green or yellow and purple, 2-flowered, both bisexual; glumes ± equal, as long as spikelet (excluding awns), 1-nerved; lemma hairy, lobe awns not exserted, central awn 4-12 mm long, basally twisted; anthers 1.9-2.5 mm long.
Annual to 30 cm, often with stalked glands. Leaves linear, usually hairy, sheath mouth with a ring of bristles. Spikelets 3.3-5.0 mm long, in an open panicle, lemmas awned.
