Mok bai bang : Wrightia lecomtei Pit. Family APOCYNACEAE
Shrub to small tree up to 5 m tall; all parts with white latex; twigs sparse with lenticels. Leaves simple, opposite; elliptic to obovate; 3-8 by 2-3.5 cm; apex acute, base cuneate; lower surface softly hairy. Flowers creamy yellow, crowded at the terminal end of the twigs; 2-2.5 cm across; petals 5, fused at base, oblong, valvate; stamens 5, fused, bundle triangulate in outline. Fruit not seen.