What is "trigonopleura"

Trigonopleura is a plant genus of the family Euphorbiaceae, first described as a genus in 1887. It is native to Indonesia, Malaysia, and the Philippines.

1. Trigonopleura dubia (Elmer) Merr. - Philippines
2. Trigonopleura macrocarpa Airy Shaw - Sarawak
3. Trigonopleura malayana Hook.f. - Peninsular Malaysia, Sumatra, Bangka, Borneo, Sulawesi