Isolepis habra

Slender shortly rhizomatous perennial, occasionally proliferating. Culms filiform, 7–30 cm high. Leaves well-developed, blades to 12 cm long. Inflorescence sometimes proliferating. Spikelets 2 or 3, rarely reduced to 1, 2–3 mm long; involucral bract exceeding inflorescence; glumes ± acute, not or scarcely mucronate, sides ± conspicuously 3–4-nerved, straw-coloured tinged red-brown or uniformly dark red-brown, 1.3–1.8 mm long; stamens 2 or rarely 3 in the lower flowers in a spikelet, 1 in upper; anthers 0.5–0.7 mm long; style 3-fid. Nut ± equally trigonous, with angles well-defined, ellipsoid to broad-ellipsoid or ovoid, minutely roughened, glistening, straw-coloured to pale red-brown, c. three-quarters as long as glume, 0.8–1.4 mm long, 0.6–0.8 mm diam. Flowers spring–summer.