Sarcostemma

Perennial, +/- leafless, +/- glabrous succulents or subsucculents, trailing or twining, or occasionally shrubby. Leaves rudimentary. Flowers in lateral or terminal, sessile umbels. Sepals narrowly ovate-triangular, with scales within base. Corolla deeply lobed; lobes oblong or oblong-elliptic, margins recurved. Corona 2-seriate, arising from filament part of staminal column; outer corona annular, cup- or basin-shaped, 5-angled, truncate or shortly lobed; inner corona attached to staminal column almost throughout, of 5 fleshy, compressed or keeled lobes, enclosed at base by outer corona. Anthers 2-locular, with membranous, ovate, inflexed or ascending appendages. Pollinia very narrowly ovate, pendulous; caudicles shorter than pollinia; corpuscle very narrowly ovate, deep maroon. Follicles narrowly fusiform, usually bluntly beaked, often with somewhat membranous surface. Seeds compressed, ovate, narrowly winged, smooth. x = 11 (9, 10).