Japanese name: ハウチワカエデ（葉団扇楓） Scientific name:Acer japonicum
[Overview]
A deciduous tree up to 15 m tall, growing in forests from low mountains to the subalpine zone.
The leaves are opposite, 6–13 cm long and 7–18 cm wide, palmately divided into 9–11 lobes, with doubly serrate margins.
The petiole is 2–6 cm long, about 1/4–1/2 the length of the leaf.
The leaves turn red in autumn.
The flowers are borne 10–15 in compound corymbs at the branch tips, with male flowers and bisexual flowers on the same tree.
The flowers have 5 sepals and 5 petals.
The petals are pale yellow and the sepals are crimson.
The fruits are about 2.5 cm long and borne in pairs, each with a propeller-like wing; the wings spread almost horizontally.
[Cultivation]
Propagate from seed or cuttings.
It prefers a well-drained place from partial shade to full sun.
Partial shade is better, especially while the tree is young.
In shade, the autumn color develops poorly.
Longhorn beetles and aphids cause damage, so kill them as soon as they are found.
