Woody vine. Stems pentagonal, furrowed, hirtous at angles, glabrescent; cross section with a central pentagonal vascular cylinder, usually with a hollow pith, surrounded by 3 smaller peripheral vascular cylinders. Stipules minute, triangular, early deciduous. Leaves biternate; petiole and rachis canaliculate, glabrous or abaxially pubescent, hirtous, petioles unwinged, rachis margined or unwinged; leaflets chartaceous to coriaceous, glabrous, elliptic, elliptic-lanceolate, or ovate, 6.5-11 × 2.8-5.5 cm, the apex acute to acuminate, mucronate, the base attenuate on distal leaflets, obtuse on lateral ones, the margins entire, remotely 1- or 2-dentate toward distal portion, or less often serrate. Thyrses axillary, racemiform or less often paniculate, 12-35 cm long, with canescent-pubescent or puberulent axes; cincinni canescent-pubescent, alternate, elongated, secund, few-flowered; pedicels ca. 4 mm long, articulate near the base. Sepals 5, outer sepals smaller, minutely pubescent, inner sepals tomentulose; petals obovate, ca. 4 mm long; disc 4-lobed, the central lobes oblong, obtuse or acute, pilose at base, the lateral ones much smaller; filaments pilose. Mericarps glabrous, 3-3.5 cm long, the cocci as wide as the wing, slightly swollen, with prominent vein network.
Brazilian Amazonia present, French Guiana present, Guyana present, Suriname
Known only from the Brazilian Amazonia, Guyana and French Guiana, expected from Suriname (GU: 1; FG: 7).
Woody vine.11. 001