Caespitose perennial without rhizomes, the basal sheaths silky pubescent to tomentose; culms 15-100 cm high, often ± bulbous at the base; nodes glabrous. Leaf-blades 3-30 cm long, 2-5 mm wide. Inflorescence composed of 4-12(25) racemes, these digitate or borne on an axis up to 10 cm long; racemes 3-15 cm long, the spikelets binate on a triquetrous rhachis (or sometimes on secondary branchlets). Spikelets narrowly elliptic, 2-3 mm long; lower glume an ovate scale 0.1-0.4 mm long; upper glume two-thirds to almost as long as the spikelet, 3-nerved, pubescent to villous; lower lemma as long as the spikelet, 7-nerved, pilose to woolly villous with white hairs (rarely merely pubescent); fruit ellipsoid, greyish-brown to light brown.