Chris Gomersall / 2020VISION / Common dog violet (Viola riviniana) in flower, Gamlingay Wood, Cambridgeshire, England, UK, April

Sven Zacek / Common Dog Violet (Viola riviniana) with dew. Estonia, Europe, May.

Edwin Giesbers / Common dog violet (Viola riviniana) flowers, Belgium, October

Stephen Dalton / Common house fly {Musca domestica} killed by fly-zapping machine, attracted to the ultra violet light, UK

Ann & Steve Toon / Common violet (Viola riviniana) growing at the base of a tree, Northumberland, UK, April

Sandra Bartocha / Common / Black Alder (Alnus glutinosa) trees in an Alder carr with Water Violet / Featherfoil (Hottonia palustris)in flower, Muritz National Park, Germany, May

Sandra Bartocha / Common Alder (Alnus glutinosa) trees in wetland with Water Violet / Featherfoil (Hottonia palustris) in flower, Muritz National Park, Germany, May

Alex Hyde / Primroses (Primula vulgaris) and Common Dog Violets (Viola riviniana) flowering in woodland clearing, Yorkshire Dales National Park, UK. April.

Alex Hyde / Wood Violet / Common Dog Violet (Viola riviniana) flowering in deciduous woodland. Yorkshire Dales National Park, UK, April.

Fabrice Cahez / Wild violet, (Viola riviniana), Vosges, France, May

Chris Gomersall / 2020VISION / Common dog violet (Viola riviniana) in flower, Gamlingay Wood, Cambridgeshire, England, UK, April

Chris Gomersall / 2020VISION / Common dog violet (Viola riviniana) in flower, Gamlingay Wood, Cambridgeshire, England, UK, April. Did you know? In Medieval times the dog violet was used as deodorant.

Laurie Campbell / Common dog violet (Viola riviniana) flowers, Argyll, Scotland, May

Colin Varndell / Common Dog Violet (Viola riviniana) in flower. Dorset, UK, April.

Philippe Clement / Wood Violet / Common Dog Violet (Viola riviniana) in flower. Luxembourg, April.

Stephen Dalton / Violets (Viola riviniana) in flower. Sussex, UK, April.

Simon Colmer / Caterpillar larva of Small Pearl-bordered Fritillary butterfly (Clossiana / Boloria selene) on leaf of Common Dog-violet (Viola riviniana), UK, July

Simon Colmer / Caterpillar larva of Small Pearl-bordered Fritillary butterfly (Clossiana / Boloria selene) on leaf of Common Dog-violet (Viola riviniana), UK, July

Simon Colmer / Caterpillar larva of Small Pearl-bordered Fritillary butterfly (Clossiana / Boloria selene) on leaf of Common Dog-violet (Viola riviniana), UK, July

Simon Colmer / Caterpillar larva of Small Pearl-bordered Fritillary butterfly (Clossiana / Boloria selene) on leaf of Common Dog-violet (Viola riviniana), UK, July

Simon Colmer / Caterpillar larva of Pearl-bordered Fritillary butterfly (Boloria euphrosyne) feeding on leaf of Common Dog-violet (Viola riviniana) UK, July

Simon Colmer / Caterpillar larva of Pearl-bordered Fritillary butterfly (Boloria euphrosyne) on Common Dog-violet (Viola riviniana) leaf, UK

Simon Colmer / Caterpillar larva of Pearl-bordered Fritillary butterfly (Boloria euphrosyne) feeding on Common Dog-violet (Viola riviniana) leaf, UK

Simon Colmer / Small Pearl-bordered Fritillary butterfly (Boloria / Boloria selene) caterpillar on foodplant, Common Dog-violet (Viola riviniana) Sussex, UK, July

Edwin Giesbers / Common dog violet (Viola riviniana) flower, Belgium, October

Edwin Giesbers / Common dog violet (Viola riviniana) flowers, Belgium, October

Robert Thompson / Common dog violet (Viola riviniana) flowering in oak woodland, County Armagh, Northern Ireland, UK, April

Silvia Reiche / Common Dog-violet (Viola riviniana) flower, Saint-Jory-las-Bloux, France

MYN / Niall Benvie / Common dog violet {Viola riviniana}, April, Angus, Scotland, UK meetyourneighbours.net project

Tony Evans / Common dog violets {Viola riviniana} UK

Tony Evans / Common violet {Viola riviniana} with Celandines and Primroses, UK

Duncan Mcewan / Common violet (Viola riviniana) in birch woodland, UK, Europe