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Delicate, loosely caespitose annual; culms up to 60 cm tall, erect, unbranched; leaf sheaths chartaceous, loosely pilose above and near the margins, terete; leaf laminas 1.5–9 cm × 2–5 mm, flat, glabrous, pectinate on the margins with stiff tubercle-based setae, these interspersed among raised marginal glands, acute at the apex.
Panicle 5–20 cm long, lanceolate to narrowly oblong; branches in a succession of whorls, smooth, with elongated viscid glandular patches, the spikelets 2–3 on secondary branchlets or (3)6–10(15) directly on the primary branches, the spikelets or branchlets confined to the distal part of the primary branches.
Grain broadly elliptic, 0.7–1.2(1.4) mm long, slightly laterally compressed.
