NPR:

And it’s true: Nettles are high in iron, potassium, manganese, calcium and vitamins A and C (and are also a decent source of protein). The word “nettle” describes more than 40 different flowering plant species from the Urtica genus, which comes from the Latin word “uro,” meaning, “I burn.” The plant is native to Europe, Asia, Africa and North America, and is found throughout the continental United States. Nettles are readily available in spring and summer.

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