Russell Cooper / Banded Demoiselle (Calopteryx splendens) male at rest on Yellow Flag Iris flower bud (Iris pseudacorus) Morden, South London. England, UK.

Wild Wonders of Europe / Allofs / Flowering Yellow iris (Iris pseudacorus) Camargue, France, May 2009

Ernie Janes / Yellow Flag Iris (Iris psueudacorus) and Banded Snail (Cepaea nemoralis) North Norfolk, UK, June

Philippe Clement / Yellow Iris / Yellow Flag (Iris pseudacorus) in flower. Belgium, May.

Philippe Clement / Yellow Iris / Yellow Flag (Iris pseudacorus) in flower. Belgium, May.

Adrian Davies / Yellow Iris (Iris pseudacorus), unopened buds. UK, May.

MYN / Niall Benvie / Yellow iris (Iris pseudacorus) flower on white background, Scotland, UK, June meetyourneighbours.net project

MYN / Niall Benvie / Yellow iris (Iris pseudacorus) flower on white background, Scotland, UK, June meetyourneighbours.net project

Nick Upton / Yellow flag irises (Iris pseudacorus) growing alongside a drainage channel. The Camargue, France, May.

Donald M. Jones / Yellow-headed Blackbird (Xanthocephalus xanthocephalus) male calling from blooming Yellow Iris (Iris pseudacorus), western Montana

Michel Poinsignon / Yellow iris {Iris pseudacorus} and Cotton grass {Eriophorum sp} Lorraine, France

Juan Carlos Munoz / Yellow iris (Iris pseudacorus) flowering in wetlands, Andalucia, Spain, March

Juan Carlos Munoz / Yellow iris (Iris pseudacorus) flowering in wetlands, Andalucia, Spain, March

Juan Carlos Munoz / Yellow iris (Iris pseudacorus) flowering in wetlands, Andalucia, Spain, March

Martin Gabriel / Stands of Yellow iris (Iris pseudacorus) along the White Laber river, near Dietfurt, Bavaria, Germany, May 2007.

Mark Yates / Southern hawker dragonfly (Aeshna cyanea) resting on yellow iris (Iris pseudacorus) UK

Bernard Castelein / Dew-covered Yellow iris {Iris pseudacorus} buds, Belgium

David Pike / Yellow Flag {Iris pseudacorus} River Nene, Water Newton, Cambridgeshire, UK

MYN / Niall Benvie / Yellow iris {Iris pseudacorus} UK, June meetyourneighbours.net project

Willem Kolvoort / Underwater view of Yellow iris plant (Iris pseudacorus) showing tuber, Lake Naarden, Holland

Willem Kolvoort / Split level view of Yellow iris (Iris pseudacorus) growing by side of sand winning pit, Holland

GEORGETTE DOUWMA / Yellow iris {Iris pseudacorus} UK.

Niall Benvie / Yellow iris {Iris pseudacorus} flower, Estonia.

Philippe Clement / Yellow / Flag iris {Iris pseudacorus} Belgium

Bernard Castelein / Yellow iris {Iris pseudacorus} Belgium

Adrian Davies / Yellow iris, Iris pseudacorus, South England, UK, Europe.

Adrian Davies / Yellow iris seed heads (Iris pseudacorus) South England, UK, Europe

Bernard Castelein / Yellow iris flower and morning dew {Iris pseudacorus} Belgium, Europe

Bernard Castelein / Yellow iris flower about to unfurl {Iris pseudacorus} Belgium, Europe

Artur Tabor / Yellow / Flag iris {Iris pseudocorus} flowering in woodland. Poleski NP, Poland