Adrian Davies / Monkshood (Aconitum), Surrey, England, UK, June.

Wild Wonders of Europe / Zupanc / Monkshood (Aconitum napellus) flowers with bumble bee in flight, Triglav National Park, Slovenia, August 2009

Nick Upton / Monkshood (Aconitum napellus) flowering among limestone rocks on montane pastureland, Covadonga, Picos de Europa, Asturias, Spain, August.

Nick Upton / Monkshood (Aconitum napellus) flowering on montane pastureland above Lake Ercina, Lakes of Covadonga, Picos de Europa, Asturias, Spain, August.

Loic Poidevin / Monkshood (Aconitum napellus) in flower in mountain, Valais, Switzerland, September

Will Watson / Monk's-hood (Aconitum napellus), Cadmore Brook, Tenbury Wells, Worcestershire, England, UK, May.

Alex Hyde / Monkshood (Aconitum napellus) Nordtirol, Austrian Alps. June.

Dong Lei / Monk's hood (Aconitum sp) Daocheng County, Qinghai-Tibet Plateau, China. August.

Paul Harcourt Davies / Yellow monkshood (Aconitum anthorum) in flower, Mount Terminillo, Rieti, Lazio, Italy, July

Juan Manuel Borrero / Illustration of Monkshood (Aconitum napellus). Pencil and watercolor painting.

Nick Upton / Alpine wolfsbane / Yellow monkshood (Aconitum lycoctonum neapolitanum) a highly toxic plant, growing on karst limestone mountainside at 1700m, Triglav National Park, Slovenia, July

Nick Upton / Alpine wolfsbane / Yellow monkshood (Aconitum lycoctonum neapolitanum) a highly toxic plant, growing on karst limestone mountainside at 1700m, Triglav National Park, Slovenia, July

Nick Upton / Highly toxic Alpine Wolfsbane / Yellow monkshood (Aconitum lycoctonum neapolitanum) clump growing on karst limestone mountainside at 1600m, Triglav National Park, Slovenia, July.

Robert Thompson / Wolfsbane {Aconitum vulparia} Lago di Limo, Dolomites, Italy

Wild Wonders of Europe / Zupanc / Monkshood (Aconitum napellus) flowers, Triglav National Park, Slovenia, August 2009

Philippe Clement / Wolfsbane (Aconitum vulparia) in flower, Italy

WILLIAM OSBORN / Monkshood flowers {Aconitum napellus} Wilts, UK. Poisonous

WILLIAM OSBORN / Monkshood flowering in woodland {Aconitum napellus} garden escape, Wilts, UK. Poisonous

Jean E. Roche / Monkshood (Aconitum napellus) on hillside, Cantal, France

Florian Möllers / Blue Monkshood (Aconitum sp) flowers. Zhouzhi Nature Reserve, Shaanxi, China, October.

Robin Chittenden / Common monkshood (Aconitum napellus vulgare) in flower, Pyrenees, France, July

Lewis Jefferies / Monkshood (Aconitum napellus) in flower on mountainside with view to Seceda Mountain on the Adolf Munkel Hiking route, Odle/ Geisler mountain group, Puez-Odle Nature Park, South Tyrol, Italian Dolomit...

Lewis Jefferies / Monkshood (Aconitum napellus) in flower on mountainside with view to Seceda Mountain on the Adolf Munkel Hiking route, Odle/ Geisler mountain group, Puez-Odle Nature Park, South Tyrol, Italian Dolomit...

Lewis Jefferies / Monkshood (Aconitum napellus) in flower on mountainside with view to Seceda Mountain on the Adolf Munkel Hiking route, Odle/ Geisler mountain group, Puez-Odle Nature Park, South Tyrol, Italian Dolomit...

Konrad Wothe / Wolf's bane (Aconitum lycoctonum ranunculifolium) flowering, Alps, Engadin, Switzerland, Europe. July.

Paul Harcourt Davies / Wolf's-bane (Aconitum lycoctonum) in flower, Lazio, Italy. July.

Pal Hermansen / Monkshood (Aconitum lycoctonum) Photograph taken with the Kirlian technique, a technique which allows imaging of electrical coronal discharge.

Pal Hermansen / Bumblebee (Bombus consobrinus) nectaring on Aconite (Aconitum lycoctonum septentrionale). Buskerud, Viken, Norway. July.

Jenny E. Ross / Monkshood (Aconitum productum), Amguema River Estuary, Chukchi Sea, Chukotka, Siberia, Russia

Steve Nicholls / Monkshood (Aconitum napellus) growing on the banks of the Mells Stream in Edford Woods, Somerset, UK, a Somerset Wildlife Trust reserve. May 2011