Biology : |
Annual herb; culms tufted, 4,2-20 cm long, 0,5-1,3 mm Ø, trigonous, smooth; leaf sheath membranous, reddish-brown to sometimes purplish-brown, 1-2,2 cm long; blade linear, flat, glabrous, 5-19 cm x 1,3-2 mm, acuminate; inflorescence simple with primary branches 4-8, 0,5-4 cm long; spikelets loosely arranged in digitate clusters, sometimes on an elongated axis, situated at end of primary branches, often at least one cluster sessile; spikelets 7-32 per cluster, linear, 0,4-1,2 cm x 0,7-1,7 mm. |
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