Shrubby evergreen tree to 15 m tall. Leaves circular with heart-shaped base, 8-15 cm long. Flowers bright yellow with dark red-purple centre in the morning, fading to orange-pink in the afternoon and falling off on the same day, 7-9 cm long. Fruits gobbles to obovoid with persistent hairy calyx at base, drying and splitting open into 10 pars when ripe.