Paul Harcourt Davies / Frog orchid (Coeloglossum viride) flower, Mt Terminillo, Lazio, Italy, July.

Alex Hyde / Frog Orchid (Coeloglossum viride) Nordtirol, Austrian Alps. July.

Alex Hyde / Frog Orchid (Coeloglossum viride) photographed against a white background in mobile field studio. Nordtirol, Austrian Alps. July.

David Kjaer / Frog orchid (Coeloglossum viride), Wiltshire, UK, June.

Paul Harcourt Davies / Frog Orchid (Coeloglossum viride) Mount Terminillo, Lazio, Italy June.

Paul Harcourt Davies / Frog Orchid (Coeloglossum viride) Mount Terminillo, Lazio, Italy June.

Paul Harcourt Davies / Frog Orchid (Coeloglossum viride) close up, Mount Terminillo, Rieti, Lazio, Italy, June.

Alex Hyde / Frog orchid (Dactylorhiza viridis), Peak District National Park, Derbyshire, UK, May.

Robert Thompson / Frog orchid (Dactylorhiza viridis) flowers, Cruit Island, County Donegal, Republic of Ireland, July

Robert Thompson / Frog orchid {Dactylorhiza viridis} Cruit Island, Co. Donegal, July

Robert Thompson / Frog orchid {Dactylorhiza viridis} Cruit Island, Co. Donegal, July

Russell Cooper / Frog orchid {Dactylorhiza viridis} UK

Geoff Simpson / Frog orchid {Dactylorhiza viridis} Peakdale Quarry, Peak District NP, Derbyshire, UK

Paul Hobson / Six spot burnet moth {Zygaena filipendulae} on Frog orchid {Coeloglossum viride}

Paul Hobson / Frog orchid flower {Dactylorhiza viridis} Peak District NP, England

Paul Hobson / Frog orchid flower {Dactylorhiza viridis} Peak District National Park, England

Paul Hobson / Frog orchid flower {Dactylorhiza viridis} Peak District National Park, England

Paul Hobson / Frog orchid flower close up {Dactylorhiza viridis} Peak District NP, England

Mark Moffett / Tree Frog (Rana sp) in canopy orchid, Trinidad

Christian Ziegler / Frog Greenhood (Pterostylis sargentii) flower, western Australia

Russell Cooper / Frog orchid {Dactylorhiza viridis} UK

Paul Harcourt Davies / Frog orchid (Dactylorhiza viridis). Dolomites, Italy. June.

Paul Harcourt Davies / Frog orchid (Dactylorhiza viridis), close up. Dolomites, Italy. July.

Paul Harcourt Davies / Frog orchid (Dactylorhiza viridis). Dolomites, Italy. July.

Steve Nicholls / Frog orchid (Dactylorhiza viride) growing on the machair at Horgabost, South Harris, Outer Hebrides, Scotland, UK, July.

Steve Nicholls / Frog orchid (Dactylorhiza viride) growing on the machair at Horgabost, South Harris, Outer Hebrides, Scotland, UK, July.

Steve Nicholls / Frog orchid (Dactylorhiza viride) growing on the machair at Horgabost, South Harris, Outer Hebrides, Scotland, UK, July.