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形态特征七叶树科七叶树属落叶乔木,一般高3～6米,最高可达12米。原产北美洲大陆,树皮灰褐色,片壮剥落,小枝粗壮,栗褐色,光滑无毛。掌形复叶,小叶通常5枚,成树5～7枚,叶片长7.5～15厘米,每年初春嫩叶为泛红色,盛夏叶片为深绿色,秋季则为金黄色,所以又称变色木。4～5月开花,圆锥形花序,红色,花枝长10～20厘米,每朵花长4厘米左右。苗当年生长量可达80厘米左右。红花七叶树为深根性植物,侧根须根相对较少,因此在移栽时要带好土球,且坑要深一些,多用基肥。由于树皮薄,当苗木树干较粗时,还需在深秋和早春刷白。
Achilles Department of Aesculus is a deciduous tree trees, generally 3 to 6 meters high, up to 12 meters. Native North American mainland, bark gray-brown, strong splinters, twigs thick, chestnut brown, smooth glabrous. Palm-shaped compound leaves, leaflets usually 5, 5 to 7 trees, leaves 7.5 to 15 cm long, the annual early spring leaves are reddish, midsummer leaves dark green, autumn is golden yellow, so also known as discolored wood. April to May flowering, conical inflorescence, red, flowering branches 10 to 20 cm long, each flower about 4 cm long. Miao year growth of up to 80 cm. Safflower is a deep-rooted plant, with relatively few root-side roots. Therefore, soil should be taken in transplanting and the pit should be deep, with more base fertilizer. Due to the thin bark, when the trunk of the seedling is thicker, it is also necessary to white-fry in late autumn and early spring.