Plant: Perennial grass 45-95 cm, culms erect; blades 7-25 cm long, 3-7 mm wide, mostly flat, margins sharply scabrous; ;panicles 10-30 cm long, 1-6 cm wide, condensed, interrupted below; spikelets 6-15 mm long, 3-9 mm wide with 4-20 florets.