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Caespitose, short-lived perennial without rhizomes or stolons; culms up to 90 cm tall, erect, ascending or decumbent and rooting from the nodes, usually branched, glabrous at the nodes, eglandular or with a ring of small coalescent glandular patches below the nodes; basal leaf sheaths glabrous, chartaceous, ± compressed and keeled, gland-dotted on the nerves, persistent; ligule a line of hairs; leaf laminas 5–20 cm × 3–5 mm, linear, flat or involute, glabrous, eglandular.
Panicle 11–23 cm long, narrow and contracted or open and effuse, stiffly branched, the spikelets evenly distributed on pedicels 1.5–2.5 mm long, these with a conspicuous annular gland, the primary branches not in whorls (but often paired or loosely clustered), terminating in a fertile spikelet, glabrous in the axils.
Caryopsis 0.5–0.6 mm long, broadly elliptic to almost square.
