- Leaves simple, opposite or whorled (rarely alternate), entire.
- Copious white latex.
- Without stipules.
- Scale-like glands in petiole axils.
- Petioles of terminal leaves pressed together only at extreme base.
- Flowers tubular with fused corolla.
- Fruit a pair of dehiscent follicles with winged or arillate seeds, rarely a drupe.
Diagnosis: 1. Trees or shrubs with leaves opposite or whorled, entire, often thick, finger-shaped, scale-like glands in petiole axil, copious white latex, without stipules. 2. Trees with leaves simple, alternate, spiraled, copious white latex, without stipules.
Local distribution: Widespread.
|Clusiaceae||: petioles of terminal leaves held together over terminal bud, petals free, latex often clear or yellow.
|Euphorbiaceae||: leaves alternate, without scale-like glands in petiole axil, flowers unisexual.
|Moraceae||: stipules present, flowers not showy.
Diversity: Total: 11 genera, 18 species. Trees: 5 genera, 8 species.
Comments: Now considered to include the milkweed family, Asclepiadaceae, which are mostly vines and lianas in our region.