caltha palustris (marsh-marigold, kingcup)

caltha palustris marsh-marigold kingcup yellow flowers wetland plant aquatic marsh vibrant blooms glossy leaves flowering pond streamside marshland flora kingcup botanical photography species natural habitat water plants floral close-up nature blossoms spring blooming season wet perennial riparian vegetation golden wildflower bog lush greenery wetland bright water-loving detail nature flower macro native petals ecosystem wild swamp bloom beauty botanic colorful pondside wildflowers garden wetlands texture biodiversity plant close-up