Monoecious perennial, to 60 cm tall; culms slender, glabrous, constricted at nodes, somewhat geniculate at the lower nodes. Sheaths except the uppermost shorter than the internodes, +/- glabrous, sometimes ciliate, the lower ones bladeless; blades asymmetrical, acuminate, +/- rounded to acute on one side of base, obtuse on the other, 5-10 cm long, 1.5-2.5 cm wide, glabrous except on and near the scabrid margins. Inflorescence a small panicle either terminal and staminate or axillary with 1 pistillate spikelet and 2 to several staminate ones; staminate spikelets lacking glumes, 4-6 mm long, soon deciduous; pistillate spikelets lacking first glume; second glume and sterile lemma nearly equal, exceeding fruit, long-acuminate, to 1 cm long, prominently veined, the veins scabrid near the apex. Fruits white, shiny, indurate, triangular, truncate at apex, 4-5 mm long. Croat 6474.