三蕊楠屬常綠大喬木，原生於蘭嶼及菲律賓北部密林中，植株基部具板根。嫩莖葉呈紅色且具絨毛，葉互生呈長橢圓或倒卵形，革質。花小呈白色，腋生或頂生總狀花序，因每花僅有3枚可受孕完全之雄蕊而得名。果橢圓形，熟時由綠轉為紫黑色，果期9月。蘭嶼野生族群瀕臨滅絕，應加以保育。

An evergreen large tree in the genus Endiandra, native to Orchid Island in Taiwan and the northern jungle of the Philippines. The plant has buttress roots. The new stems are red and villous. The leaves are alternate, long elliptical or obovate and leathery. The flowers are small and white, axillary or terminal racemes. The plant is named after the fact that each flower has only 3 fertilizable stamens. Fruit are oval, from green to purple black when mature. Fruiting in September. The wild population in Orchid Island are seriously endangered and need preservation efforts.

全日照溫暖環境，幼株略具耐陰性。土壤以富含腐植質之砂質壤土為佳，排水需良好。以播種、高壓或扦插繁殖。

The plant favors full-sun and warm environments, the saplings are slightly shade-tolerant. Sandy loam containing rich humus and well-drained is preferred. Propagated by seeding, air layering or cuttings.

新葉黃綠色或帶粉紅色，春季色彩清新怡人。樹形優美，適合做庭園景觀樹或行道樹。花朵構造有異於一般樟科植物，可作為自然觀察教學使用。

New leaves are yellow-green or tinged pink, and emit fresh and pleasant feel in spring. With elegant tree shape, it’s suitable for use as garden landscape trees or street trees. The fact that its flower structure is different from other plants in the same genus which can be applied in educational activities of natural observation.