Sphedamnocarpus pruriens Szyszyl.

A herbaceous or woody climber or scrambler. Younger stems densely +/- appressed greyish-silvery- or yellowish-sericeous, older ones +/- pubescent or nearly glabrous. Leaves petiolate; lamina 3.5-7.5 (11) x 1.7-5 (10) cm., ovate, ovate-subcircular or ovate-oblong, rarely oblong-elliptic, ovate-lanceolate or lanceolate, apex obtuse to acute, mostly distinctly apiculate, base subcordate to rounded or cuneate, greyish- or yellowish-sericeous-tomentose underneath, greyish-pubescent or arachnoid or glabrescent on the upper surface; petiole (0.5) 0.8-2.5 (4.5) cm. long, canaliculate, sericeous, with 2 glands in the upper half; stipules 2-4 mm. long, obovate, usually absent. Umbels 2-6-flowered; bracts +/- 2.5 mm. long, lanceolate; bracteoles 1.5-2 mm. long, oblong. Flowers 2-2.5 cm. in diam. Sepals +/- 2.5 mm. long, ovate or obovate-oblong, sericeous outside; petals 8-12 mm. long, obovate to obovate-oblong, yellow, unguiculate, usually entire. Stamens with anthers c. 1 mm. long, oblong, glabrous; filaments c. 4 mm. long, glabrous. Ovary densely sericeous; styles c. 5 mm. long. Samara with wing 1.5-2 x 1.1-1.5 cm., sericeous to nearly glabrous.