Psychrophila leptosepala (Marsh Marigold) Helleboraceae (Hellebore Family)

Subalpine. Wetlands, openings, meadows. Spring, summer.

Linnaeus named the "Caltha" genus in 1753, and Augustin de Candolle named this species in 1818.  In the late 1900s William Weber renamed the plant Psychrophila leptosepala, placing it in the genus first named by Berchtold and Presl in 1823.

"Psychro" "phila" means "cold" "lover". "Lepto" is Greek for "fine".  The plant is most often assigned to Ranunculaceae (Buttercup Family).