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。

Any of several usually hairy Old World plants, especially in the genera Anchusa, Brunnera, and Echium, having blue or violet flowers.

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藿香蓟：一种产于西半球的菊科胜红蓟属植物，尤指熊耳草，具有鲜艳的彩色头状花序。

Any of several other plants having flower clusters similar to the ageratum.

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藿香蓟：一种产于西半球的菊科胜红蓟属植物，尤指熊耳草，具有鲜艳的彩色头状花序。

Any of several other plants having flower clusters similar to the ageratum.

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