Plants perennial, with creeping, underground rhizomes. Culms densely tufted, rarely laxly so. Leaf blade flat, rolled. Spike dense, rarely lax, usually with terminal spikelet. Spikelets 1(or 2) per node, sessile, with (5–)7 or 8 florets; rachilla disarticulating above glumes. Glumes rounded abaxially or keeled only at apex, rarely keeled throughout length. Lemma rounded abaxially, rarely keeled, usually 5-veined, densely pilose or hirsute, awnless or shortly awned. Palea apex retuse, obtuse, or 2-lobed. Caryopsis oblong, apex usually hairy. x = 7.
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