Vegetative parts: plants tufted (Possibly also tangled), 0.6 m tall (but very little data). Fertile culms sparingly branched or branching, round (not compressed), solid or with a small central cavity, smooth (drying somewhat ribbed or sulcate), olivaceous, 0.6 m tall, diameter at base 2–3 mm, diameter at apex 0.8–1.3 mm. Sheaths more than 1 per culm, persistent, with no abscission line, loosely convoluted, 6–30 mm long, dark or reddish brown, dying almost black, apical margins broadly membranous, hyaline shoulders absent or membranous margins continuing behind awn, hyaline shoulder 0.1 of sheath body length, apex, excluding the membranous lobes, acuminate or acute or obtuse. Sheath-mucro awl- or needleshaped, straight and erect, 1.5–5 mm long, broad membranous margins lost on older sheaths. Males: male inflorescence with 6–10 spikelets or 11–20 spikelets, paniculate, 10–30 mm long, 5–15 mm wide. Male inflorescence spathes persistent, shorter than spikelets or as tall as spikelets, coriaceous. Male spathellae inconspicuous or absent. Male flowers in spikelets. Male spikelets erect on stiff pedicels or sessile, elliptical or ovate, apex acute or undifferentiated, 6–13 mm, 2.2–2.8 mm, with 10–20 flowers, pedicels absent ie spikelets sessile (clustered at the nodes of the inflorescence), impossible to detect. Male bracts taller than flowers, 4–8 mm long, ovate, acuminate, coriaceous, bract upper margin membranous, thinner texture than the body, bract awn less than half as long as the bract body or between half and as long as the bract body, awns recurved giving the spikelets a very distinctive appearance. Male flower 3–4 mm long. Male tepals sepals more rigid than petals, chartaceous (midrib gives some rigidity to outer tepals, which are therefore more cartilaginous than chartaceous), petals chartaceous, linear or oblong or elliptical (outer tepals oblong but inner ones more elliptical, both fairly narrow so as to appear close to linear), inner and outer tepals the same length. Male outer lateral tepals conduplicate, keel densely villous. Anthers 1.4–2.5 mm long (with a substantial mucro, half as long as anther. Filaments are massive and flattened), exserted from the flowers. Females: female inflorescence interrupted, 10–35 mm long, 5–15 mm wide, with 1 spikelet or 2–5 spikelets. Female spathes shorter than the spikelets, persistent, coriaceous. Female spikelet sessile, elliptical or ovate (nearly round), apex undifferentiated, 6–15 mm long, with 5–15 flowers, with 0–1 sterile bracts. Female bracts taller than flowers (sometimes recurving bracts expose older flowers), erect or reflexed, 6.5–10 mm long, ovate (almost orbicular), acuminate, coriaceous, apical margin membranous, same as body of bract, margins entire, awn less than half as long as the bract body. Female flower 4.5–6.5 mm long, without a fleshy pedicel, six tepals. Female tepals coriaceous or cartilaginous, keels of lateral sepals densely villous, midrib raised, margins entire, apices acute, inner and outer whorls the same length. Female outer lateral tepals conduplicate, 4.5–6 mm long. Female odd outer tepal oblong or ovate (usually broader at the base but with parallel sides), 3.8–5.3 mm long. Female inner tepals oblong or ovate, 3.5–5.3 mm long. Staminodes absent. Styles feathery, 2. Style bases fused to form a pillar. Ovary with 2 locules, dehiscent. Fruit: seed 1.6–2 mm long, 1.1–1.6 mm in diameter, shape in side view elliptical, shape in diameter triangular in cross section, grey or white, pitted.