Culms scandent or high-climbing, as much as 25 m. long, 5 mm. thick, smooth or roughly papillose above the nodes; sheaths ciliate, more or less fimbriate at the mouth; blades of the sterile shoots mostly 5-9 cm. long, 8-15 mm. wide, pilose on the lower surface at the base, otherwise glabrous, the margins scabrous; fertile shoots 2-8 cm. long in dense fascicles on long slender drooping branches, the blades 5-20 mm. long; panicles very small, composed of 1 to 4 spikelets; spikelets 8-9 mm. long, appressed; glumes thin, about 0.5 mm. long; sterile lemmas acuminate, half to two-thirds as long as the floret; fertile lemma acute, awnless, glabrous; palea about as long as the lemma, rounded on the back or sulcate only near the tip; stamens 3.5 mm. long.
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