Caltha natans
Caltha natans
Caltha natans Pall. ex Georgi.
Engl.: floating marsh marigold.
Deu.: Schwimmende Dotterblume.
Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.