Woody climber with long, slender, glabrous or pubescent branches. Leaves loosely pinnate or bi-pinnate with a few variable in shape, sub-orbicular, ovate-oblong, entire or incised to lobed, rarely with a few sharp teeth, very often narrowly linear-oblong or lanceolate with 1 or 2 short, narrow subbasal to lateral lobes, obtuse more rarely acute, usually glabrous. Petiole often twisted. Flowers yellow or purplish at least in part, in lax panicles. Sepals usually narrower, (8-) 12-15 x 3-5 mm, ovate-lanceolate, tomentose along the margin, silky or glabrous outside, vinous or glabrescent inside. Filaments flattened, tapering gradually or abruptly from a broad base, ± short, ciliate or hairy. Anthers glabrous. Achenes silky hairy. Style up to 3 cm long, ciliate plumose.