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.