Perennial, climber up to 10 m high. Leaf blades of 2 dissimilar kinds, margins scabrid; lower leaves 50-160 mm long, lanceolate, acute, expanded, ± flaccid, caudate; upper leaves filiform, 200-220 mm long, with very long filiform apices. Inflorescence 50-120 mm long, ovate, open. Spikelet 6-9 mm long, awnless; glumes minute, cup-like; lower two florets sterile, subulate, uppermost floret fertile; anther 4.5-6.0 mm long.
Perennial, climber. Leaf blades up to 150 mm long, 5-10 mm wide (scabrid). Spikelets 6-9 mm long. Inflorescence a loose panicle; spikelets with solitary female-fertile florets subtended by minute cuplike glumes and 2 subulate sterile lemmas.