| 释义 |
bull thistlen.（名词）- A biennial Eurasian thistle(Cirsium vulgare) in the composite family, naturalized in North America and having heads of purplish flowers and spiny stems and leaves. 牛蓟：一种两年生的欧亚蓟类菊科（矛叶蓟 蓟属） 植物，原产于北美，有紫色的花和多刺的式与叶
- [From its large head] [得名于其巨大的头状花序]
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