Cypripedium calceolus, lady's-slipper orchid.
It is widespread worldwide, found from Europe east through Asia to the Pacific Ocean. In open woodland on moist calcareous soils. It has declined over much of the European part of its range, and as a result is legally protected in a number of countries. Marisko, også kalt fruesko, er fredet både i Norge og Sverige. Fylkesblomst i Nord-Trøndelag.