Vegetative parts: fertile culms sparingly branched or branching, Roughly warty, olivaceous, diameter at apex 0.3–0.5 mm. Sheaths closely convoluted, 8–20 mm long, olivaceous, apical margins narrowly membranous, hyaline shoulders tall, acute, hyaline shoulder 0.3–0.5 of sheath body length, apex, excluding the membranous lobes, obtuse or rounded or truncate. Sheath-mucro penicellate, straight and erect, 4–6 mm long, roughly papillose. Males: male inflorescence with 1 spikelet or 2–5 spikelets, racemose, 15–20 mm long, 5–8 mm wide. Male inflorescence spathes persistent, shorter than spikelets or as tall as spikelets, coriaceous, awn and membranous lobes as tall as spikelet. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, oblong, apex rounded, 9–11 mm, 3–6 mm, with 4 flowers, pedicels absent ie spikelets sessile. Male bracts taller than flowers, 5–7 mm long, ovate, acute or acuminate, cartilaginous, bract upper margin membranous, thinner texture than the body (about half of the length of the cartilaginous portion of the bract), bract awn less than half as long as the bract body or between half and as long as the bract body, distinctive with long awns flanked by wide membranous margins. Male flower 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, keel sparsely villous. Anthers 1.5–1.7 mm long, exserted from the flowers. Females: female inflorescence with 1 spikelet. Female spathes as long as the spikelets, persistent, coriaceous. Female spikelet sessile, obtriangular, apex truncate, 9–10 mm long, with 3 flowers, with 0–2 sterile bracts. Female bracts taller than flowers, 8–9 mm long, ovate, acute or acuminate, cartilaginous, apical margin membranous (almost half the width of the cartilaginous part), paler than body of bract, awn less than half as long as the bract body or between half and as long as the bract body. Female flower 3.8–4 mm long, without a fleshy pedicel. Female tepals cartilaginous, keels of lateral sepals sparsely villous, midrib flush with the tepal body, apices acute, inner whorl shorter than outer. Female outer lateral tepals conduplicate, 4–4.2 mm long. Female odd outer tepal oblong, 4 mm long. Female inner tepals ovate, 3 mm long. Staminodes present. Styles feathery, 3. Style bases free. Ovary with 2 locules, dehiscent.