Definitions for caltha palustris
This page provides all possible meanings and translations of the word caltha palustris
marsh marigold, kingcup, meadow bright, May blob, cowslip, water dragon, Caltha palustris(noun)
swamp plant of Europe and North America having bright yellow flowers resembling buttercups
Caltha palustris is a perennial herbaceous plant of the family Ranunculaceae, native to marshes, fens, ditches and wet woodland in temperate regions of the Northern Hemisphere. It becomes most luxuriant in partial shade, but is rare on peat. In the United Kingdom, it is probably one of the most ancient native plants, surviving the glaciations and flourishing after the last retreat of the ice, in a landscape inundated with glacial meltwaters. Height is up to 80 centimetres tall. The leaves are rounded to kidney-shaped, 3–20 centimetres across, with a bluntly serrated margin and a thick, waxy texture. Stems are hollow. The flowers are yellow, 2–5 cm diameter, with 4-9 petal-like sepals and many yellow stamens; they appear in early spring to late summer. The flowers are visited by a great variety of insects for pollen and for the nectar secreted from small depressions, one on each side of each carpel. Carpels form into green sac-like follicles to 1 cm long, each opening to release several seeds. Caltha palustris is a highly polymorphic species, showing continuous and independent variation in many features. Forms in the UK may be divided into two subspecies: Caltha palustris subsp. palustris, and Caltha palustris subsp. minor.
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