Lianas; stems 3-6-costate when young, conspicuously hispidulous on the an-gles, becoming obscurely 3-angled or terete, glabrous; wood simple. Leaves ter-nate-pinnately compound, 16-20 cm long with 11 leaflets, the lowermost pair of segments biternate; petiole 2.5-5 cm long, without wings, hispidulous, both the upper and lower rachis winged, the medial ridge hispidulous, the broadest wings to 1 cm wide; leaflets oblong-lanceolate, acuminate at the apex, narrowly acute at the base, 1.7-10.5 cm long, 0.9-2.7 cm wide, entire, sometimes inconspicuously ciliolate, glabrous above except sometimes sparsely stiff-pubescent on the promi-nently raised, nearly square midrib, glabrous beneath except sometimes on the midrib, axillary tufts lacking, the major lateral veins numerous, often 20 or 30, inconspicuous, especially on the upper surface, scarcely more prominent than the reticulate venation, arising at almost 90? from the midrib, loop-connected near margin, the reticulate venation very close, prominulous on both surfaces; stipules linear-lanceolate, to ca. 1 cm long, prominently hirsute without and along the margin, glabrous within. Inflorescences axillary, the thyrses less than 1.5 cm long, glomerulate, the rachis weakly viscidulous, sparsely hispidulous; braceteoles nar-rowly triangular, 1-1.5 mm long, sparsely hispidulous; pedicels glabrate to his-pidulous, 5-7 mm long in fruit, articulate below the middle. Flowers unknown; old sepals (persistent on fruits) glabrous except near the margin at the apex, to 2.5 mm long. Fruits round in outline, broadly 3-winged, red, subcordate at the apex, acute to attenuate at the base, briefly stipitate, 1.8-2.2 cm long, about as wide as long, 1?-locular, glabrous or sparsely puberulent near the base without, densely stiff, whitish-pubescent within; seed 1, ovoid to rounded, ca. 9 mm long, black, shiny, pubescent, enveloped at the base by a white aril.
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