Oncinema

Perennial, twining herb. Leaves shortly petiolate, slender. Flowers in lax cymes or racemes, lateral at nodes. Corolla with shallowly campanulate tube and 5 suberect, linear lobes. Corona of 5 lobes +/- as long as staminal column; lobes free, erect, laterally compressed, linear, grooved down the back. Anthers 2-locular, with ovate, membranous appendages; pollinia minute; caudicles shorter than pollinia. Style produced into tapering, bifid column as long as corolla. Follicles solitary by abortion, narrowly fusiform. Seeds brown, linear-lanceolate, convex on back, concave on face, narrowly winged, smooth or with irregular ridges.