Any of certain perennial herbs of the genus Lathyrus in the pea family, especially L. japonicus, native to shores in the Northern Hemisphere, having pinnately compound leaves and purplish flowers.

• 海边山黧豆，野豌豆：任何一种豆科中的多年生山黧豆属草木植物，特别是海滨山黧豆，原生在北半球的海边，具有羽状复叶和紫色的花