Vascular Plants of Wisconsin

Caltha palustris L.
marsh marigold
Family:
Ranunculaceae
native
type: herbaceous perennial

flowers fruit  
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Caltha palustris is a common native species of wet sites throughout Wisconsin, being most conspicuous in spring-fed sites, along Creeks and in swamps if the canopy is patchy or thin. It is commonly found in the presence of Alnus incana (speckeld alder), Thuja occidentalis (white cedar) or even Fraxinus nigra (black ash).

The flowers are relatively large with yellow tepals, several pistils and numerous stamens. Leaves are simple with rounded tip and lobes. It is widely distributed in the northeastern U.S.A., Alaska and the Pacific coast and to some extent in all Canadian provinces. It is also native in temperate Europe and Asia.

 

map
known distribution based on vouchers

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