Vegetative parts: plants tufted (Often aggregated into large dense stands), 0.2–0.6 m tall, basal diameter 0.1–0.5 m, crown diameter 0.1–0.5 m, compact, without spreading rhizomes or stolons. Fertile culms unbranched, smooth or finely rugulose, olivaceous, 0.2–0.6 m tall, diameter at base 0.2–0.6 mm, diameter at apex 0.05–0.3 mm. Sheaths closely convoluted, 10–25 mm long, olive, similar to culms, apical margins narrowly membranous, hyaline shoulders small, rounded or membranous margins continuing behind awn, hyaline shoulder 0.05 of sheath body length, apex, excluding the membranous lobes, acute. Sheath-mucro penicellate, straight and erect, 2–3 mm long, sheaths difficult to distinguish from the culms. Males: male inflorescence with 2–5 spikelets or 6–10 spikelets, racemose, 15–40 mm long, 2–4 mm wide. Male inflorescence spathes persistent, shorter than spikelets or as tall as spikelets or taller than spikelets, coriaceous, brown-gray, similar to sheaths. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, elliptical or obovate, apex rounded or obtuse or acute, 4.5–5 mm, 1.5–2.5 mm, with 2–4 flowers, pedicels absent ie spikelets sessile. Male bracts as tall as flowers, 3–4 mm long, oblong, acute or acuminate, cartilaginous, bract upper margin like body of bract, bract awn minute or absent, dark brown. Male flower 3–3.5 mm long. Male tepals sepals more rigid than petals, cartilaginous, petals membranous, oblong, inner and outer tepals the same length. Male outer lateral tepals conduplicate, glabrous or keel sparsely villous. Anthers 0.8–1.5 mm long, exserted from the flowers. Pistillode present. Females: female inflorescence globose or racemose, 7–20 mm long, 3–5 mm wide, with 2–5 spikelets. Female spathes shorter than the spikelets or as long as the spikelets or longer than the spikelets, not obscuring spikelet, persistent, coriaceous. Female spikelet sessile, obovate or obtriangular, apex truncate or rounded, 4–6 mm long, with 1 flowers, with 4–6 sterile bracts. Female bracts shorter than flowers, 2–2.8 mm long, oblong, acute or acuminate, cartilaginous, apical margin like rest of bract, same as body of bract, awn minute or absent. Female flower 3–3.5 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, 3–3.5 mm long. Female odd outer tepal oblong, 3–3.5 mm long. Female inner tepals ovate, 3–3.5 mm long. Staminodes present. Styles feathery, white, 3. Style bases free. Ovary with 3 locules, dehiscent. Fruit: seed (1.16–)1.3(–1.44) mm long, (0.68–)0.86(–1) mm in diameter, shape in side view oblong, shape in diameter rectangular in cross section, silvery, colliculate.