Kim Taylor / Common blue butterfly (Polyommatus icarus) females awaking at sunrise among Harebells (Campanula rotundifolia) Surrey, England, digital composite

Mike Potts / Harebells on east slope on Bardsey Island, with a lighthouse in the distance. North Wales, UK, August 2012

Erlend Haarberg / Harebell (Campanula rotundifolia) flowering, Reisa National Park, Troms, Norway, July

Nick Upton / Harebell / Bellflower (Campanula rotundifolia) flowering clump among grasses on karst limestone mountainside at 1700m, Triglav National Park, Slovenia, July

Nick Upton / Harebell / Bellflower (Campanula rotundifolia) flowering clump among grasses on karst limestone mountainside at 1700m, Triglav National Park, Slovenia, July

Laurie Campbell / Harebell (Campanula rotundifolia) single flower weighed down with raindrops, Inverness-shire, Scotland, August

Steve Nicholls / Harebell flowers (Campanula rotundifolia) UK

Nick Upton / Harebell / Bellflower (Campanula rotundifolia) flowering at 1600m on karst limestone boulder at the Cirque de Gavarnie, Haute Pyrenees, France. July 2009

Staffan Widstrand / Bluebell bellfower / Harebell {Campanula rotundifolia} flower, Gotska Sandön National Park, Sweden, July

Peter Lewis / Harebell (Campanula rotundifolia), Norway

Niall Benvie / Harebell flowers {Campanula rotundifolia} after rain, Scotland, UK

Tim Fitzharris / Bluebell (Campanula rotundifolia) and Agave (Agave sp), North America