Trisetopsis longa (Stapf) Röser & A.Wölk

Tufted perennial 600-1 100(-1 600) mm high, long rhizomatous with new shoots spreading for a short distance underground before emergence. Leaf blade 150-300(-400) x 2.5-10.0 mm, expanded, tapering into a fine point. Inflorescence 150-300 mm long, linear, usually contracted. Spikelet 15-30 mm long (excluding awns), usually loosely flowered; glumes unequal, broadly lanceolate, acuminate; lower glume 1-3-nerved, glabrous, minutely scaberulous along the nerve(s); upper glume shorter than 1/2 as long as spikelet, 3-nerved; rachilla internode 2.5-3.0 mm long, bearded, with hairs up to 3 mm long; lemma lanceolate, smooth or minutely granular below the central awn insertion; palea keels minutely and inconspicuously hairy; anther 3.6-5.1 mm long.