Rehderodendron macrocarpum is a species of flowering plant in the family Styracaceae, native to southwestern China (Guangxi, Sichuan, Yunnan) and northern Vietnam, where it grows at altitudes of 1,000âÂÂ1,500 m. It is threatened by habitat loss.
It is a deciduous small tree growing to 7âÂÂ10 m tall, with a trunk up to 25 cm diameter. The leaves are alternate, simple, 7âÂÂ13 cm long and 3.5âÂÂ5.5 cm broad, oblong-ovate to oblong-lanceolate, with a finely serrated margin, and a reddish 7âÂÂ15 mm long petiole. The flowers are 15âÂÂ18 mm long, with five white petals; they are produced in cymes of four to eight together, in late spring. The fruit is a dry, woody drupe 5âÂÂ7 cm long and 2.5âÂÂ3 cm broad, containing a single (rarely two) seed 2âÂÂ5 cm long and 5 mm broad.
It has been introduced to Europe and North America, where it is occasionally planted as an ornamental tree for its decorative flowers.