Japanese name: ホソエカエデ(細柄楓) Scientific name:Acer capillipes
[Overview]
A deciduous small tree or tree seen in forests of low mountains, growing about 10–15 m tall.
The trunk is erect.
The bark is green with black patches.
The leaves are opposite, pentagonal to ovate-pentagonal, 6–15 cm long and 4.5–12 cm wide, shallowly palmately 3–5-lobed.
The leaf tip is drawn out into a tail.
The leaf margins have irregular double serrations.
The petiole is 2.5–8 cm long.
The leaves and petioles are at first covered with curly reddish-brown hairs, but later become almost hairless.
The vein axils on the underside of the leaf have small, thin, web-like membranes.
The leaves turn red in autumn.
It is dioecious.
The flowers are borne, 20–50 per raceme 5–10 cm long, at the branch tips, and hang down.
The inflorescence has curly reddish-brown hairs.
The flowers are pale yellow, with 5 sepals and 5 petals.
The fruits are 1.3–1.8 cm long and borne in pairs, each with a propeller-like wing, and the wings spread at an obtuse angle.