Japanese name: タイワンモクゲンジ(台湾木患子) Scientific name:Koelreuteria henryi
[Overview]
A deciduous tree 15–20 m tall.
The leaves are alternate, 45–50 cm long, and odd-bipinnately compound.
There are 5–13 leaflets, elliptic, 6–8 cm long and 2.5–3 cm wide, with serrated margins.
Large panicles 25 cm long at the branch tips bear many yellow five-petaled flowers.
The petals are strongly reflexed and have red appendages, and the base is a short claw.
The fruit is an elliptic capsule 4 cm long, swollen like a balloon, and turns pale red to reddish brown.
The fruit contains black seeds, which are dispersed by the wind.
[Cultivation]
Propagate from seed or by root cuttings.
It can overwinter outdoors in the Kanto region and south.
It grows well in any soil as long as the site is sunny.