Gary K. Smith / Field scabious (Knautia arvensis) in flower, Norfolk, UK, July

Nick Upton / Purple scabious (Knautia purpurea) flowering on Piva plateau, near Trsa, Montenegro, July.

Nick Upton / Lesser meadow rue (Thalictrum minus) flowering among Purple scabious (Knautia purpurea) on Piva plateau, near Trsa, Montenegro, July.

Nick Upton / Purple scabious (Knautia purpurea) flowering in profusion on Piva plateau, near Trsa, Montenegro, July.

Nick Upton / Small skipper butterfly (Thymelicus sylvestris) nectaring on a Field scabious flower (Knautia arvensis) with its long proboscis, chalk grassland meadow, Wiltshire, UK, July

Nick Upton / Spotted longhorn beetle (Rutpela maculata) feeding on a Field scabious flower (Knautia arvensis) in a chalk grassland meadow, Wiltshire, UK, July.

David Pike / Field scabious (Knautia arvensis) in flower, Green Down Nature Reserve, Somerset, England, UK, July.

Nick Upton / White form of Field scabious (Knautia arvensis) flowering on a chalk grassland slope, Wiltshire, UK, July.

Alan Williams / Tree bumblebee (Bombus hypnorum) feeding on Field scabious (Knautia arvensis) in garden Cheshire, England, UK. June.

MYN / Dirk Funhoff / Field Scabious (Knautia arvensis), Mannheim Baden-Wurttemberg, Germany, April. meetyourneighbours.net project

Kim Taylor / Black-veined white butterfly (Aporia crataegi) on Field Scabious (Knautia arvensis) flower, France, July.

Kim Taylor / Purple-edged copper butterfly (Lycaena hippothoe) on Field scabious (Knautia arvensis) flower, France, July.