579 Dactylorhiza purpurella (T. & T. A. Steph.) Soó

Syn.: Orchis purpurella T. & T. A. Steph.

This species is sometimes taken as a subspecies of D. majalis (no. 578); cf. Fl. Eur. 5/1980, p. 335. It is restricted to NW. Europe.