Tufted perennial with silky hairy basal sheaths; culms ascending, 15–80 cm. high, wiry.. Leaf-blades very narrow, 1–15 cm. long, 1–3 mm. wide, flat, or rolled, green or glaucous.. Inflorescence a solitary raceme subtended by a narrow spatheole, these loosely aggregated on the culms; raceme 1.5–4.5 cm. long, with 0–1 smaller homo-gamous pairs of spikelets at the base.. Sessile spikelet narrowly elliptic, 2.5–4 mm. long; lower glume cartilaginous, glabrous, shining, with a circular depression in the upper third, acute; upper lemma entire or minutely bidentate, its awn 12–18 mm. long.. Pedicelled spikelet with or without a pit.. Fig. 167.