kingcup or marsh marigold

april bloom blooming blossom bog boggy bud buttercup caltha calthus damp ditche fen flood flora floral florist flower gold green ground herbaceous inundate inundated inundation kingcup lake marigold marsh marshe may mayflower meltwater nature paluster palustris perennial plant ranunculaceae spring trollius water watermeadow watery wet wild woods yellow