caltha palustris, marsh-marigold and kingcup five petal-like, brightly colored yolk yellow inverted egg-d sepals. beautiful

caltha palustris marshmarigold kingcup five petallike brightly colored yolk yellow inverted eggshaped sepals beautiful spring flowers growing swamp springtime water concept marigold flower nature may flora wet wild buttercup petal bloom blossom ranunculaceae april gold blooming marsh watermeadow wildflower trollius outdoors poisonous meltwater bud ditche flood floral marshe mayflower