Phyllorachis Trimen

Culms slender, stiff, branched upwards. Terminal inflorescence bisexual; racemes 3–4-spiculate, the lowest spikelet ♀ and the rest ♂ (vestigial spikelets may also be present); spikelets without a rhachilla-extension. Male spikelets: lower glume subulate to oblong; upper glume narrowly ovate, up to one-third the length of the spikelet, 1-nerved; lower lemma coriaceous, 3-nerved; upper lemma keeled, membranous to thinly coriaceous, 5–7-nerved; palea 2-nerved; stamens 6. Female spikelets: lower glume subulate or setiform; upper glume ovate-oblong to oblong, one-third to half the length of the spikelet, 5–9-nerved; lower lemma about as long as the spikelet, nearly enclosing the upper floret, longitudinally grooved down the middle of the back, becoming tough and rigid, many-nerved; upper lemma as long as the spikelet, thinly coriaceous, 11–17-nerved; palea 8–12-nerved. Axillary inflorescences ♀, of 1 or 2 1-spiculate racemes borne upon a slender axis; spikelets narrower and longer than those of the terminal inflorescence; stigmas long, projecting from the mouth of the subtending leaf-sheath.