crown vetch

crown-vetch的词性：
n.（名词）

1. A perennial European herb (Coronilla varia) in the pea family, grown for forage and erosion control and having clusters of small white or pink flowers and pinnately compound leaves.
多变小冠花：一种豆科的多年生欧洲草本植物（小冠花属 变异小冠花） ，用来作饲料和控制侵蚀，开有白色的或粉红色的小花花簇并生有羽状复叶