Caltha palustris

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Related to Calthus palustris: Chelone glabra, Mentha aquatica

Caltha palustris

a toxic plant in the family Ranunculaceae; contains a vesicant substance protoanemonin. Ingestion of the plant causes stomatitis, salivation, diarrhea and abdominal pain. Called also marsh marigold, cowslip, kingcup.