Deciduous trees. Leaves alternate, imparipinnate or bipinnate. Inflorescences large terminal panicles. Flowers unisexual, zygomorphic. Sepals 5, connate at base, slightly unequal. Petals 4, longer than sepals, yellow, reddish at base, turned upwards; Stamens 8, exserted in male flowers. Fruits bladder-like, inflated, loculicidal capsules. Seeds globose, without fleshy structures.
Asia-Temperate: Korea, Asia-Tropical: New Guinea cultivated
Indigenous in Korea and China; widely cultivated elsewhere. In Malesia according to Van Royen, l.c., cultivated in New Guinea as an ornamental. No herbarium material seen.