Any of several usually hairy Old World plants, especially in the genera Anchusa, Brunnera, and Echium, having blue or violet flowers.
牛舌草一种多毛的东半球植物，尤指牛舌草属和蓝蓟属，有蓝色或紫色的花。
African plant with bright green evergreen leaves and umbels of many usually deep violet-blue flowers.
非洲的一种植物，具有明亮的绿色常青叶和有深紫绿色花构成的伞状花序。
A southwest Asian perennial herb (Medicago sativa) having compound leaves with three leaflets and clusters of usually blue-violet flowers. It is widely cultivated as a pasture and hay crop.
苜蓿，紫花苜蓿：一种亚洲西南部多年生草本植物(苜蓿)，其复叶由三小叶构成，花簇通常为蓝紫色的。它作为牧草和干草而被广泛种植。
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