any of various small plants of the genus Lathyrus; climb usually by means of tendrils
vetchling详细解释
vetch.ling n.（名词）Any of several plants of the genusLathyrus, having pinnately compound leaves, slender tendrils, and variously colored flowers. 山黧豆属植物：一种野豌豆 属的草本植物，具有羽状复叶，细长的卷须和各种颜色的花朵
