荨麻是蝴蝶生存的关键。它是很多幼虫包括蛱蝶科的如花斑蛱蝶，孔雀蛱蝶等的食物来源。

Nettles are key to the survival of butterflies, as they are the primary food source for many caterpillars including those of the comma, tortoiseshell and peacock.

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荨麻疹是皮肤科较常见的皮肤黏膜过敏性疾病，它的病因复杂。

Urticaria is a common skin mucocutaneous allergic disease in dermatology. The etiology is very complex.

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荨麻属植物的一科包括许多有刺荨麻。

To sting or whip with or as if with nettles.

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