美国海棠隶属于蔷薇科苹果属,落叶小乔木,广泛分布于北美洲温带地区,几十年来引种于世界各地。美国海棠计有数百个园艺栽培品种,由园艺学家用杂交等方法培育而成。花色各异,着花繁密,颜色从雪白、粉白、粉红、玫瑰红、深红、紫红不等;叶子有绿色、红色、亮红色、橘红色多种颜色;果实颜色鲜艳丰富,从绿色、黄色、浅黄、粉红、深红、紫红不等、挂 American Begonia belong to Rosaceae apple genus, deciduous tree, widely distributed in temperate North America, for several decades introduced around the world. Begonia counts hundreds of horticultural cultivars cultivated by horticulturalists using hybrid methods. Different colors, flowers dense color from white, pink, pink, rose red, dark red, mauve ranging; leaves are green, red, bright red, orange red variety of colors; fruit color is bright and colorful, from the green, Yellow, light yellow, pink, dark red, purple, hanging