Stock photography, photos: Caltha palustris Stock photos of Caltha palustris Photograph: © Esa Hiltula Click for a larger image and more information Keywords associated with this stock photo: Caltha palustris, Marsh, Marigold, nature, buttercup, wildflower, wild, flower, water, pond, lake, marsh, wet, damp, conditions, bog, wetland, yellow, green, bloom, blossom, pollen, petals, plant, Finland, Europe