Niall Benvie / Photograph of flowering Burnet saxifrage (Pimpinella saxifraga) manipulated and text added to represent illustrated book page. Scotland, UK, July

Wild Wonders of Europe / Schandy / Artistic view of Saxifrage flowers, Mount Cheget, Caucasus, Russia, June 2008

Niall Benvie / Meadow Saxifrage in Scotland. (Saxifraga granulata) Angus

Nick Upton / Livelong saxifrage (Saxifraga paniculata) and Maidenhair spleenwort (Asplenium trichomanes) growing in limestone rock crevices, Covadonga, Picos de Europa, Asturias, Spain, August.

Nick Upton / Livelong saxifrage (Saxifraga paniculata) and Maidenhair spleenwort (Asplenium trichomanes) growing in limestone rock crevices, Covadonga, Picos de Europa, Asturias, Spain, August.

Erlend Haarberg / Yellow mountain saxifraga (Saxifraga aizoides) growing on marble. Lahko National Park, Fjell, Norway, July.

Yva Momatiuk & John Eastcott / Purple Saxifrage (Saxifraga oppositifolia) and Reindeer Moss (Cladonia rangiferina) in tundra, Langanes Peninsula, Iceland

Yva Momatiuk & John Eastcott / Purple Saxifrage (Saxifraga oppositifolia) and Reindeer Moss (Cladonia rangiferina) in tundra, Langanes Peninsula, Iceland

Laurie Campbell / Mossy Saxifrage (Saxifraga hypnoides) Rum National Nature Reserve, Inner Hebrides, Scotland, June.

Erlend Haarberg / Rosettes of Pyramidal Saxifrage (Saxifraga cotyledon) Klaebu. Norway, May.

Erlend Haarberg / Rosettes of Pyramidal Saxifrage (Saxifraga cotyledon) Klaebu. Norway, May.

Paul Harcourt Davies / Thick-leaved saxifrage (Saxifraga callosa) Campo Imperatore, Abruzzo, Italy June 2016