Erect tree, c. 5 m, glabrous. Leaves clustered at the ends of the branches; Inflorescence a dense terminal compound umbel; Stamens 4. Ovary 4-celled. Fruit unknown.
Asia-Tropical: Philippines (Philippines present), Biliran present, Mindanao present, Samar present
Malesia: Philippines (Samar, Biliran and Mindanao).
The description is partially based on the original publication as I have seen only immature inflorescences. For a discussion of distinctive features, see under 9. O. catanduanense.