- Trigonobalanus
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Trigonobalanus 
Trigonobalanus doichangensis Scientific classification Kingdom: Plantae (unranked): Angiosperms (unranked): Eudicots (unranked): Rosids Order: Fagales Family: Fagaceae Genus: Trigonobalanus Species See text.
Trigonobalanus is a genus of three species of evergreen trees in the family Fagaceae, related to beeches and chestnuts. The species are widely scattered, with one in northern South America and two in southeast Asia; some botanists treat the three species in separate genera. The three species, with their authors, major synonyms and distribution, are:
- Trigonobalanus doichangensis (A.Camus) Forman (syn. Formanodendron doichangensis (A.Camus) Nixon & Crepet). Subtropical Yunnan to northern Thailand.
- Trigonobalanus excelsa Lozano, Hern. Cam. & Henao (syn. Colombobalanus excelsa (Lozano, Hern. Cam. & Henao) Nixon & Crepet). Endemic to Colombia.
- Trigonobalanus verticillata Forman. Tropical Indonesia and the Malay Peninsula.
External links
- WCSP: Trigonobalanus
- Thai BFK Forest Herbarium: Trigonobalanus doichangensis (description and photos)
- Flora of China: Formanodendron doichangensis (with drawing)
- Drawing of Trigonobalanus verticillata
- Photo of Colombobalanus excelsa
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