科属:槭树科槭树属原产地及分布:原产于北美洲,主要分布加拿大和美国的大片地区。形态特征:大型乔木,树高12-18米,最高可达30米,冠幅12米。树形椭圆形、圆形。叶片3-5裂,手掌状,叶长5-10厘米。美国改良红枫新生的叶子正面呈红色,之后变成绿色,直至深绿色。叶背面是 Family: Maple Branch maple Genus origin and distribution: native to North America, mainly in Canada and the United States in large areas. Morphological characteristics: large trees, tree height 12-18 meters, up to 30 meters, 12 meters crown. Tree oval, round. 3-5 cracked leaves, palmately, leaves 5-10 cm long. The leaves of the improved red maple freshmen in the United States turned red, then turned green until dark green. The back of the leaf is