Swamp plant of Europe and North America having bright yellow flowers resembling buttercups.

synonyms: Caltha palustris, cowslip, marsh marigold, May blob, meadow bright, water dragon.

Polish: kaczeniec, kaczyniec, knieć

Any of various plants of the genus Ranunculus.

synonyms: butter-flower, buttercup, butterflower, crowfoot, goldcup.

Dutch: ranonkel, boterbloem
Polish: jaskier