Any of several Old World herbs of the genus Medicago in the pea family, having clusters of small, usually yellow flowers and compound leaves with three leaflets. Several species are important for fodder and green manure.

• 苜蓿属植物产于东半球的豆科苜蓿属草本植物，生有通常为黄色的小花簇和含三个叶片的复叶。此属中有几种植物是重要的饲料和绿色肥料