Description: Small tree to ca 10 m tall; young twigs glabrous to very sparsely pubescent. Leaves distichous, oblong to lanceolate or slightly obovate, 9–25 cm long; apex acute to acuminate; base subcordate; blade glabrous, subglaucus on lower surface; secondary nerves 9–16 on each side; petioles 2–7 mm long. Flower solitary, axillary near branch tip, yellow to pink. Sepals 3, thickened, triangular, 1.5–4 mm long, sparsely hairy outside. Petals 3, lanceolate, connivent, mostly 3–8 cm long, twisted, constricted near to base, sparsely hairy outside. Stamens numerous, 2–3.5 mm; connective truncate. Carpels many; ovaries densely hairy. Monocarps 7–24; each 1.5–4.5 cn long; stipes 1–7 cm; 1–6 seeds.

Photos: Preecha Karaket (Tarutao, Satun)