Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Acer shirasawanum is a species of maple native to Japan, on central and southern Honsh , Shikoku, and Ky sh . It is a deciduous large shrub or small tree growing to 8 15 m tall with a trunk up to 50 cm diameter. The bark is smooth on both young and old trees. The shoots are slender, and hairless. The leaves are rounded, 4.5 8 cm long and 6 12 cm broad, palmately veined and lobed, with 9 13 serrate shallowly incised lobes; they are hairless, or thinly hairy at first with white hairs; the petiole is 3 7 cm long and hairless. In autumn, the leaves turn bright gold or orange to dark red. The flowers are 1 cm diameter, with five dark purplish-red sepals, five small whitish petals, and red stamens; they are andromonoecious, with inflorescences containing flowers with either both sexes, or just male, and are produced 10 20 together in erect terminal corymbs in early spring soon after the leaves appear. The fruit is a paired samara with the nutlets 5 10 mm diameter with a 20 25 mm wing, erect above the leaves, bright red maturing brown.