white marsh marigold

''Caltha leptosepala'', the white marsh marigold, twin-flowered marsh marigold, or broad-leaved marsh marigold, is a species of flowering plant in the buttercup family. It is native to western North America from Alaska to New Mexico, where it grows in wet mountain habitats in alpine and subalpine regions. There are two general wild types of this species, one native to the interior and one that grows along the Pacific coast and coastal mountains, but these are not always treated separately.
.. more