Sven Zacek / Cornflower (Centaurea cyanus) at sunset, with bokeh affect, Jogevamaa, Estonia, June.

Ann & Steve Toon / Cornfield annual summer wildflowers growing on one of the plant charity Landlife's National Wildflower Farms, St Helens, Merseyside, UK, June.

Ann & Steve Toon / Wildflowers, including poppies (Papaver rhoeas), corn marigold (Glebionis segetum), cornflowers (Centaurea cyanus) and corn chamomile (Anthemis arvensis), being grown for seed by Landlife, Fir Tree Fa...

Paul Harcourt Davies,Paul Harcourt Davies / Cornflowers (Centaurea cyanus) and Mayweed (Anthemis) on the Piano Grande, Umbria, Italy, June 2010

Paul Harcourt Davies,Paul Harcourt Davies / Cornflowers (Centaurea cyanus) in fallow fields, near Sugano, Orvieto, Italy, June

Paul Harcourt Davies / Cornflowers (Centaurea cyanus) and poppies (Papaver rhoeas) growing on fallow fields near Orvieto, Umbria, Italy. June 2010

Paul Harcourt Davies,Paul Harcourt Davies / Cornflowers (Centaurea cyanus) growing on fallow fields near Orvieto, Umbria, Italy, June. Taken with fisheye lens

Stephen Dalton / Horse fly (Tabanus sp) male in flight towards cornflower, controlled conditions.

Gary K. Smith / Cornflower (Centaurea cyanus) UK, July

Wild Wonders of Europe / Giesber / Mountain cornflower (Centaurea montana) flower, Liechtenstein, June 2009. BOOK & WWE OUTDOOR EXHIBITION.

Wild Wonders of Europe / Widstra / Close-up of Mountain cornflower (Centaurea montana) flower, Sleneset, Norway, June 2008 WWE BOOK, WWE INDOOR EXHIBITION

Wild Wonders of Europe / Bartocha / Mountain cornflower (Centaurea montana) in flower, Piano Grande, Monti Sibillini National Park, Umbria, Italy, May 2009

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) with the sun behind it, Liechtenstein, July 2009

Wild Wonders of Europe / Giesbers / Close-up of Mountain cornflower (Centaurea montana) flower, Liechtenstein, July 2009

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) in flower by a mountain stream, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) flowering by a mountain stream, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) close-up of petals, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) close-up of petals, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) close-up of flower head, Liechtenstein, June 2009

Wild Wonders of Europe / Giesbers / Mountain cornflower (Centaurea montana) flower, Liechtenstein, June 2009

Wild Wonders of Europe / Widstrand / Mountain cornflower (Centaurea montana) abstract flower, Sleneset, Norway, June 2008

Niall Benvie / Cornfield weeds composite - Cornflower, Poppy and Corn marigold, Scotland, UK meetyourneighbours.net project

Solvin Zankl / Cornflower seeds (Centaurea cyanus). Cornflower seeds are partly dispersed by ants and also carry a tuft of hygroscopic (water-absorbing) fibres that expand when wet and retract when dry, thus driving...

Colin Varndell / Mixed farmland wildflowers - Oxeye daisy, Poppy and Cornflower, Dorset. UK.

Chris Gomersall / Common poppy and other wild flowers {Papaver rhoeas} UK

Guy Edwardes / Barn owl (Tyto alba) perched in Cornflower (Centaurea cyanus) meadow. Gloucestershire, England, UK. Captive.

Guy Edwardes / Barn owl (Tyto alba) perched in Cornflower (Centaurea cyanus) meadow. Gloucestershire, England, UK. Captive.

Sandra Bartocha / Field with Barley (Hordeum vulgare) Cornflowers (Centaurea cyanus), Poppies (Papaver rhoeas), Peckatel, Mecklenburg-Western-Pommerania, Germany, June.

Sandra Bartocha / Field of poppies (Papaver rhoeas) and Cornflowers (Centaurea cyanus) flowering in Barley (Hordeum vulgare) crop under blue sky with clouds, Peckatel, Germany, June.

Sandra Bartocha / Field of poppies (Papaver rhoeas) growing in Barley (Hordeum vulgare) crop, Peckatel, Germany, June.

Sandra Bartocha / Field of Barley (Hordeum vulgare) with poppies (Papaver rhoeas) Peckatel, Germany, June.

Sandra Bartocha / Field of Barley (Hordeum vulgare) with Poppies (Papaver rhoeas) and Cornflowers (Centaurea cyanus) Peckatel, Germany, June.

Sandra Bartocha / Field of poppies (Papaver rhoeas) and Cornflowers (Centaurea cyanus) Nonnenmuehle, Germany, June.

Sandra Bartocha / Field with flowering Cornflowers (Centaurea cyanus) and Poppies (Papaver rhoeas) Kargow, Germany, June.

Linda Pitkin / Cornflowers (Centaurea cyanus) growing with grasses and poppy seed heads, locally rare plant,Probably not native at this site. Clandon Wood, West Clandon, near Guildford, Surrey, England, July.

Linda Pitkin / Cornflowers (Centaurea cyanus), locally rare plant, Probably not native at this site. Clandon Wood, West Clandon, near Guildford, Surrey, England, July.

Linda Pitkin / Cornflower (Centaurea cyanus), locally rare plant but probably not native at this site. Ham House meadow, Surrey, England, June.

Ernie Janes / RF - Corn Marigold (Glebionis segetum), with Cornflower (Centaurea cyanus) and Poppy (Papaver rhoeas) in hay meadow (This image may be licensed either as rights managed or royalty free.)

Ernie Janes / RF - Corn Marigold (Glebionis segetum), with Cornflower (Centaurea cyanus) and Poppy (Papaver rhoeas) in hay meadow (This image may be licensed either as rights managed or royalty free.)

Ernie Janes / Corn Marigold (Glebionis segetum), with Cornflower (Centaurea cyanus) and Poppy (Papaver rhoeas) in hay meadow

Nigel Cattlin / Greater knapweed (Centaurea cyanus). Berkshire, England, UK. July.

Dave Bevan / Six spot burnet (Zygaena filipendulae) nectaring on a Cornflower (Centaurea cyanus), Norfolk, England, UK, July.

Bruno D'Amicis / Red poppies, cornflowers, daisies and other ruderal species colonize abandoned cultivated fields. Gran Sasso National Park. Central Apennines, Abruzzo, Italy, June.

Bruno D'Amicis / Red poppies, cornflowers, daisies and other ruderal species colonize abandoned cultivated fields. Gran Sasso National Park, Central Apennines, Abruzzo, Italy, June.

Sandra Bartocha / Low angle view of Cornflowers (Centaurea cyanus) Seeland, Denmark

Paul Harcourt Davies / Poppies (Papaver rhoeas), Cornflowers (Centaurea cyanus) and Chamomile (Anthemis arvensis) near Castellucio di Norcia, Umbria, Italy, July.

Paul Harcourt Davies / Poppies (Papaver rhoeas), cornflowers (Centaurea cyanus) and chamomile (Anthemis arvensis) near Castellucio di Norcia, Umbria, Italy. July.

Paul Harcourt Davies / Poppies (Papaver rhoeas) and cornflowers (Centaurea cyanus) near Castellucio di Norcia, Umbria, Italy, July.