Origin of depicted specimens: Cyprus, south of Troodos (Mt. Olympus) summit, above Pano Platres, 1360 m, limestone, collected May 21, 1980 by myself. At this very small site the flowers of P. crystallina are white. It is likely that the 'true' P. crystallina is an endemism of Cyprus. The closely related populations found in southwestern Turkey are listed here under P. crystallina subsp. hirtiflora. Morphologically and caryologically the P. crystallina/hirtiflora-group is the most interesting Pinguicula species in Europe.
In order to collect a few P. crystallina it was necessary to construct a rope ladder.