Dryas octopetala
Hippolyte Coste - Flore descriptive et illustrée de la France, de la Corse et des contrées limitrophes, 1901-1906 - This image is in public domain because its copyright has expired. - Foto visualizzata 551 volte

Dryas octopetala
Credit: Photo by Angelo Mazzoni - Foto visualizzata 521 volte

Dryas octopetala
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 273. - Foto visualizzata 558 volte

Dryas octopetala
Photo by Leo Michels. Usage: Public Domain - Foto visualizzata 529 volte