象耳豆属含羞草科。原产美洲的热带。引入我国栽培的有红皮象耳豆(Enterolobium cyclocarpum)和青皮象耳豆(E.contortusiliqum)。通常所见的象耳豆是指前一种。两种象耳豆同为落叶乔木,高20米左右,径1米以上,主干高约2米。红皮象耳豆随树龄增长,树皮从灰乳白色转为棕色,比较粗糙;青皮象耳豆则转为浅青灰色,比较光滑,为二者形态差异中最明显的识别特征。象耳豆原在广 Like ear beans Mimosa Branch. Native American tropical. Introduced into our country are cultivated with red-eyed ears (Enterolobium cyclocarpum) and green peel (E.contortusiliqum). Commonly seen like ear beans is the former kind. Two kinds of ear beans with deciduous trees, about 20 meters high, more than 1 meter in diameter, the main high of about 2 meters. Red-eared ear beans grow with age, the bark from gray milky white to brown, rough; blue-eared ear turn to light gray, relatively smooth, as the most obvious morphological differences between the two recognition features. Ear beans like the original wide