Perotis flavidodula Mez

Mat-forming perennial with underground rhizomes; culms 30–90 cm. high, decumbent at the base.. Leaf-blades narrowly lanceolate, 4–6 cm. long, 3–5 mm. wide.. Spike 7–15 cm. long, exserted from the uppermost sheath, the spikelets moderately dense and ascending or spreading horizontally.. Spikelets 3–4 mm. long, with a short stipitiform callus 0.3–0.5 mm. long; glumes scaberulous, spinously scabrid on the broad midnerve, bearing an awn 7–10 mm. long.. Caryopsis flattened.