Annual; culms slender, branching, usually decumbent-spreading; sheaths glabrous or usually papillose-pilose, especially toward the summit, the collar often densely pubescent; ligule ciliate, about 0.5 mm. long; blades flat, acuminate, 5-20 cm. long, 2-7 mm. wide, scabrous and more or less papillose-pilose; spikes 10-25, 5-8 mm. long, usually spreading, falling entire; glumes acuminate, scabrous, the first 3-5 mm. long, the second 5-8 mm. long; fertile lemma 5-6 mm. long, 3-toothed, the teeth aristate, the central one minutely bifid; rudiment small, usually reduced to an awn scarcely longer than the fertile floret.
Home