- Trees with simple, alternate, entire leaves in a plane.
- Without stipules.
- Twigs remain smooth and green.
- Black layer in bark of trunk.
- Few axillary flowers.
- Fruit a small to large berry with multiple seeds.
Diagnosis: Trees, outer bark often dark, inner bark with a black layer, without stipules, leaves simple, alternate, distichous, entire, twigs often notably smooth and dark green.
|Annonaceae||: aromatic odor, bark strong, usually.
|Euphorbiaceae||(Drypetes): minute stipules, inconspicuous crenations, bark without a black layer.
|Solanaceae||(Cestrum): no black inner bark layer, twig forming a pedestal for petiole and petiole distinct from twig.
Diversity: Total: 1 genus, 4 species. Trees: 1 genus, 4 species.