单词	spearwort
释义	spearwort /ˈspɪəwəːt / noun A European buttercup of marshes and ditches, with thick hollow stems and long, narrow spear-shaped leaves. Genus Ranunculus, family Ranunculaceae: the lesser spearwort (R. flammula) and the less common greater spearwort (R. lingua). The whole plant spearwort buttercup has agents that strongly causes reddening or irritation when applied to the skin.
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