Allamanda blanchetii A. DC., syn. A. violacea Gardn. & Fielding (Apocynaceae) An evergreen shrub or weak scrambling climber with leaves hairy, especially beneath and pinkish-purple flowers, native of Brazil growing along lowland streams and on the edges of forest, flowering most of the summer. Stems to 3m or more; leaves 3–5 in a whorl, 8–12cm long, ovate. Flowers on short branches in the leaf axils; calyx lobes large, ovate, hairy; corolla around 7cm across, the tube 7cm long. For a warm moist climate. Min. 5°C.