Caltha Palustris is a flowering plant commonly found in wetlands and boggy areas of North America, Europe, and Asia. The plant is also known by several other names, including marsh marigold, cowslip, and kingcup. The name cowslip is derived from the Old English words "cuslyppe" which means cow dung. This is because the plant often grows in areas where livestock graze. Another synonym for Caltha Palustris is whinflower, which comes from the Scottish Gaelic word "fhionn," meaning fair. The plant has also been called Mayflower, which is in reference to the month the plant blooms. Overall, Caltha Palustris has numerous synonyms that reflect its beauty, habitat, and cultural significance.