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“Toxicity. All Ranunculus (buttercup) species are poisonous when eaten fresh, but their acrid taste and the blistering of the mouth caused by their poison means they are usually left uneaten.”

“All species of ranunculus are poisonous to both animals and humans. When the leaves of buttercups are crushed or bruised they release a compound called ranunculin that breaks down into an acrid, toxic oil called protoanemonin. Contact with protoanemonin will mess you up in a dermatitis kind of way — causing burning and itching with accompanying rash and blisters. If the leaves are chewed by humans or beasts, blisters may form on the lips and face. L'olio tossico è anche un serio irritante per gli occhi. Ingoia alcuni ranuncoli e ti ritroverai in un mondo di dolore, incluso ma non limitato a sintomi come dolore addominale, diarrea e vomito, vertigini e persino paralisi.

Mentre i ranuncoli variano nei livelli di tossicità, le singole piante sono più tossiche in primavera quando sono vive e in fiore.