Vincetoxicum anomalum (N.E.Br.) Meve & Liede

Perennial, slender, twining climber, without milky latex. Stems much branched, usually > 2 m long when mature. Leaves coriaceous, often folded along prominent midrib, ovate to ovate-oblong, 32-68 x 19-46 mm, base cordate sometimes rounded, glabrous, apex acute to obtuse, prominently apiculate; petioles 6-13 mm long. Inflorescences pedunculate, 6-20 mm long, producing 1(2) umbel-like cymes of ± 5 flowers. Flowers 4 mm diam.; pedicels 6.0-8.5 mm long. Corolla cupular-rotate; tube fused, small and shallow, ± 1.5 mm deep; lobes ovate, ± 1.5 x 1.5 mm, glabrous outside, puberulous and dull white inside. Staminal corona: lobes lobulate, ovoid at base and oblong above, ± 1.5 x 1.5 mm, apex slightly notched, stout keel running down center of inner face, arising at base of staminal curtain, equalling depressed style apex.