Spikelets 3–5-fld, disarticulating above the glumes and between the lemmas; glumes membranous, 1–5-veined; lemmas narrow, rounded on the back, 5–7-veined, bifid at the tip, with an awn between the teeth, densely short-bearded on the callus; uppermost lemma similar but much smaller and sterile; slender, loosely tufted perennial grasses with flat lvs and ample panicles. Monotypic.