Rolf Nussbaumer / Wildflowers Mountain aven {Dryas integrifolia} and Moss campion {Silene acaulis} growing on tundra, Varanger peninsula, Arctic Norway

Solvin Zankl / Seeds of Water avens (Geum rivale), Europe. Water aven seeds have numerous hairs, which enable dispersal by wind, as well as a long hooked tail formed by the style, which readily attaches to mammal fu...

Jim Brandenburg / Prairie Smoke (Geum triflorum) blowing in the wind, North America

Geoff Simpson / Water avens seedheads {Geum rivale} Derbyshire, UK

Nick Upton / Early bumblebee (Bombus pratorum) nectaring on a Geum flower (Geum coccineum borisii) in a garden, Wiltshire, England, UK, June.

Konrad Wothe / Creeping avens (Geum reptans) Zillertal Alps, Tyrol, Austria. July.

Ernie Janes / Avens (Geum) 'Mrs Bradshaw' flowers growing in garden border, England, UK. May.

David Woodfall / Mountain avens (Dryas octopetala), The Burren, County Clare, Republic of Ireland, May.

Jen Guyton / Prairie smoke / Old man's whiskers flowers (Geum triflorum) San Juan National Forest, Durango, Colorado, USA, May.

Paul Harcourt Davies / Mountain avens (Dryas octopetala) wide angle view, Mt Terminillo, Lazio, Italy, July.

Paul Harcourt Davies / Mountain avens (Dryas octopetala) Mount Terminillo, Lazio, Italy, July.

Paul Harcourt Davies / Mountain avens (Dryas octopetala) Mount Terminillo, Lazio, Italy, July.