- marsh marigold, kingcup, meadow bright, May blob, cowslip, water dragon, Caltha palustris - swamp plant of Europe and North America having bright yellow flowers resembling buttercups
--1 is a kind of marsh plant, bog plant, swamp plant
--1 is a member of Caltha, genus Caltha - buttercup, butterflower, butter-flower, crowfoot, goldcup, kingcup - any of various plants of the genus Ranunculus
--2 is a kind of herb, herbaceous plant
--2 is a member of Ranunculus, genus Ranunculus
--2 has particulars: