Slender perennial, densely tufted, 310-630 mm high. Leaf blade 70-320 x 2.5-5.5 mm, usually flat; sheaths keeled. Inflorescence 50-190 mm long, racemes 2-8, 15-70 mm long, far apart. Spikelet 5-10 mm long, 7-12-flowered; glumes obtuse to acute; upper glume 1-nerved; lemma with club-shaped hairs near the base; anther 0.8-1. long.
Perennial, slender, densely tufted (culms erect or geniculate), up to 0.63 m high. Leaf blades 70-320 mm long, 2.5-5.5 mm wide, leaf sheaths keeled. Spikelets 5-10 mm long. Racemes 2-8, far apart; spikelets 7-12-flowered; lemma with club-shaped hairs near base.
Slender, densely caespitose perennial; culms up to 100 cm tall, erect or ascending; leaf laminas 7–32 cm × 2.5–5.5 mm, usually flat, acuminate.
Inflorescence 3.5–19 cm long, narrow; racemes 2–8, 2–6 cm long, distant, erect, lying close to the main axis.