Vegetative parts: plants tangled ("Forming dense masses"). Fertile culms sparingly branched or branching, compressed, smooth or finely rugulose, olivaceous, 0.18–0.4 m tall, diameter at base 0.2–0.4 mm, diameter at apex 0.05–0.1 mm. Sheaths closely convoluted, 6–20 mm long, brown, apical margins narrowly membranous, hyaline shoulders membranous margins continuing behind awn, hyaline shoulder 0.01 of sheath body length, apex, excluding the membranous lobes, acute. Sheath-mucro penicellate, straight and erect, 1–5 mm long. Males: male inflorescence with 2–5 spikelets or 6–10 spikelets, sparsely paniculate, 30–80 mm long, 3–40 mm wide. Male inflorescence spathes persistent, shorter than spikelets, coriaceous, margins soon decaying. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, elliptical or obovate, apex rounded, 3.5–5 mm, 1–2.5 mm, with 2–3 flowers, pedicels absent ie spikelets sessile. Male bracts as tall as flowers, 2–3 mm long, oblong, rounded or obtuse, chartaceous, bract upper margin like body of bract, bract awn minute or absent. Male flower 2–3 mm long. Male tepals sepals more rigid than petals, cartilaginous, petals membranous, oblong, inner tepals shorter than outer tepals. Male outer lateral tepals conduplicate, glabrous. Anthers 1–1.5 mm long, exserted from the flowers. Pistillode present. Females: female inflorescence sparsely paniculate, 5–80 mm long, 3–40 mm wide, with 1 spikelet or 2–5 spikelets. Female spathes shorter than the spikelets (like the bracts), persistent, coriaceous. Female spikelet sessile, obovate or obtriangular, apex truncate or rounded, 3–6 mm long, with 1 flowers, with 2–4 sterile bracts. Female bracts shorter than flowers, 1.5–2.5 mm long, oblong or ovate, obtuse or apiculate, cartilaginous, apical margin membranous or with honeycombed cells, paler than body of bract, awn minute or absent. Female flower 2.5–4 mm long, without a fleshy pedicel. Female tepals cartilaginous, glabrous and smooth, midrib flush with the tepal body, apices acute, inner and outer whorls the same length. Female outer lateral tepals like other tepals, 2.5–4 mm long. Female odd outer tepal oblong, 2.4–3.8 mm long. Female inner tepals ovate, 2.2–3.3 mm long. Staminodes present. Styles feathery, 3. Style bases free. Ovary with 3 locules or 2 locules, dehiscent. Fruit: seed 1–1.4 mm long, 0.6–0.9 mm in diameter, shape in side view elliptical, shape in diameter round in cross section, silvery or white, colliculate.