Vegetative parts: plants tufted (Plants generally low on the ground with the culms spreading out almost horisontally), 0.15–0.6 m tall, basal diameter 0.01–0.05 m, crown diameter 0.2–0.4 m, compact, without spreading rhizomes or stolons. Fertile culms branching, smooth or finely rugulose or finely warty, olivaceous, 0.2–0.6 m tall, diameter at base 0.5–1.5 mm, diameter at apex 0.2–0.6 mm. Sheaths closely convoluted or loosely convoluted (rarely on the older sheaths), 6–25 mm long, pale brown, apical margins narrowly membranous, hyaline shoulders membranous margins continuing behind awn, hyaline shoulder 0.05 of sheath body length, apex, excluding the membranous lobes, acute or obtuse or rounded (usually). Sheath-mucro penicellate, straight and erect, 2–10 mm long, variable, usually closely convoluted, mucro often very long. Males: male inflorescence with 2–5 spikelets or 6–10 spikelets, racemose (spikelets borne rather rigidly at a 45 degree angle to the culm), 10–50 mm long, 3–6 mm wide. Male inflorescence spathes persistent, as tall as spikelets, coriaceous, quite prominent, half enclosing the spikelets, and with an awn almost as long as the body. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, elliptical or ovate or obovate, apex rounded, 5–10 mm, 3–8 mm, with 2–6 flowers, pedicels absent ie spikelets sessile. Male bracts shorter than flowers or as tall as flowers, 2.5–4 mm long, oblong, obtuse, cartilaginous, bract upper margin with honeycombed cells, which eventually decay, bract awn minute or absent, body honey-coloured, with 3–5 striate veins, apex with a small notch or zone of foveolate cells. Male flower 3–3.6 mm long. Male tepals sepals more rigid than petals, cartilaginous, petals membranous, oblong, inner tepals shorter than outer tepals. Male outer lateral tepals conduplicate, keel densely villous. Anthers 1.5–1.8 mm long, exserted from the flowers. Pistillode present. Females: female inflorescence sparsely paniculate, 5–45 mm long, 3–6 mm wide, with 1 spikelet or 2–5 spikelets. Female spathes shorter than the spikelets or as long as the spikelets or longer than the spikelets (often only the mucro taller than the spikelet), not obscuring spikelet, persistent, coriaceous. Female spikelet sessile, obovate, apex rounded, 4–6 mm long, with 1 flowers, with 1–3 sterile bracts. Female bracts shorter than flowers or as tall as flowers, 2–3.5 mm long, oblong, obtuse, cartilaginous, apical margin with honeycombed cells, darker than body of bract, awn minute or absent. Female flower 3.3–4.5 mm long, oblique (often one lateral sepal taller than the other) or regular, without a fleshy pedicel. Female tepals cartilaginous, glabrous and smooth or keels of lateral sepals sparsely villous, midrib flush with the tepal body, apices acute, inner and outer whorls the same length. Female outer lateral tepals conduplicate, 3.3–4.5 mm long. Female odd outer tepal oblong, 3–4.3 mm long. Female inner tepals oblong, 2.7–4 mm long. Staminodes present. Styles feathery, white, 3. Style bases free. Ovary with 1 locule, dehiscent. Fruit: seed 1.6–1.8 mm long, 1.1–1.2 mm in diameter, shape in side view elliptical, shape in diameter round in cross section, silvery or grey, colliculate.