Caespitose perennials. Culms usually with several nodes, or these simple with inconspicuous nodes and short internodes at the base of the elongate peduncle. Leaves: ligule short; blade flat or involute, acuminate. Cleistogenes sometimes present in basal sheaths. Inflorescence contracted or open. Glumes subequal, lanceolate, 3-nerved. Callus often pungent. Lemma often with a corona; terminal awn slightly and loosely twisted or slightly geniculate or flexuose, deciduous, sometimes eccentric. Palea much shorter than lemma, often hyaline, nerveless or 1-nerved.
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