Biologie :

Annual herb to 35 cm tall; culms tufted, 3,5-35 cm long, 0,8-2,2 mm Ø, trigonous; leaves to 36 cm long; sheath green to pale brown, 1,5-6 cm long; blade linear, flat, 7-30 cm long, 2 mm wide; inflorescence simple to compound, primary branches 4-8, 2-8,5 cm long; spikelets in laxly sub-digitate clusters, sessile and at end of primary and secondary branches, 3-10 per cluster, 5-12 mm long, with spreading glumes.