Caltha palustris

Caltha palustris
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Ranunculales
Family:	Ranunculaceae
Genus:	Caltha
Species:	C. palustris
Binomial name
Caltha palustris L.
Varieties
C. p. var. palustris C. p. var. alba (Cambess.) Hook.f. & Thomson C. p. var. purpurea Spare & Fischer C. p. var. radicans (Forst.) Beck C. p. var. araneosa Steenis
Synonyms
Trollius paluster E.H.L.Krause

Caltha palustris, known as marsh-marigold^[1] and kingcup, is a small to medium sized perennial herbaceous plant of the buttercup family, native to marshes, fens, ditches and wet woodland in temperate regions of the Northern Hemisphere. It flowers between April and August, dependent on altitude and latitude, but occasional flowers may occur at other times.