- Leaves simple, alternate, entire, spiraled.
- With stipules.
- Large white tubular flowers with exserted style and stamens.
- Fruit a slender woody capsule with winged seeds.
Diagnosis: Herbs and shrubs, one tree species on dry Pacific slope (Hauya) with small free stipules, leaves spiraled, simple, alternate, entire, sunken midvein, large tubular white flowers.
|Opiliaceae||: few strongly ascending lateral veins, blade poorly separated from short petiole.
|Proteaceae||: sparse marginal teeth, few strongly ascending lateral veins, strong odor.
|Sapotaceae||: white latex, no stipules.
Diversity: Total: 3 genera, 5 species. Trees: 1 genus, 1 species.