Terry Whittaker / Water vole (Arvicola amphibius) feeding on Yellow flag iris (Iris pseudacorus) seed pods, Kent, England, UK. October.

Dave Bevan / Female Four-spotted chaser (Libellula quadrimaculata) landing and taking off from a Yellow iris (Iris pseudacorus) flower, Norfolk, England, UK, June.

Juan Carlos Munoz / Yellow flag iris (Iris pseudacorus), Liendo, Cantabria, Spain. May.

Chris Mattison / Yellow Iris (Iris pseudacorus) open seedpod with seeds. Whitelye Common, Monmouthshire, Wales, UK, October

Terry Whittaker / Water vole (Arvicola amphibius) feeding on Yellow flag iris (Iris pseudacorus) seed pods, Kent, England, UK. October.

Terry Whittaker / Water vole (Arvicola amphibius) feeding on seed pods of Flag iris (Iris pseudacorus ), Kent, England, UK. October.

MYN / Dirk Funhoff / Yellow flag iris (Iris pseudacorus) showing reproductive parts, Büchelberg, Germany. Meetyourneighbours.net project.

MYN / Dirk Funhoff / Yellow flag iris (Iris pseudacorus), Büchelberg, Germany. Meetyourneighbours.net project.

MYN / Dirk Funhoff / Yellow flag iris (Iris pseudacorus), Büchelberg, Pfalz, Germany. May. Meetyourneighbours.net project

MYN / Dirk Funhoff / Yellow flag iris (Iris pseudacorus), Büchelberg, Pfalz, Germany. May. Meetyourneighbours.net project

Nick Upton / Teresa Sinclair watching a Short-haired bumblebee queen (Bombus subterraneus) nectaring on Yellow flag iris flowers (Iris pseudacorus) after releasing it during a UK reintroduction project run by the...

Nick Upton / Short-haired bumblebee queen (Bombus subterraneus) collected in Sweden nectaring on a Yellow flag iris flower (Iris pseudacorus) with its long tongue after release during a UK reintroduction project r...