Underground parts unknown. Plant glabrous. Stem unarmed in its upper parts, faintly ridged. Bulbils none seen. Leaves opposed or alternate, firmly herbaceous, lanceolate or sometimes with the base just cordiform, shortly acuminate, up to 10 by 2½ cm, 5-nerved; petiole short, usually only 2 cm. Male flowering axes aggregated on leafless branches of considerable length, but not uncommonly some in fascicles in the leaf-axils; axes 1½-2 cm long, the longer of these are found at the base of the large branches and the shorter near the end so that the inflorescence tapers a little. Buds globose above their flat base, to 1 mm long. Female plant not yet known.
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