Spikelets 2–6-fld, with long rachilla-joints, disarticulating above the glumes and between the lemmas; glumes chiefly equal, 1-veined, acute, smooth; lemmas oblong, rounded on the back, hairy on the 3 parallel veins, 2-lobed with an awn between the lobes; palea shorter than and soon diverging from the lemma, densely villous on the 2 keels in the upper half; tufted grasses with many short internodes, loose sheaths, a ligule of short hairs, and short panicles at first included in the upper sheath, eventually exsert with spreading branches. 2, N. Amer.
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