Duncan Mcewan / Broom flower with seed pod (Cytisus scoparius). Scotland, UK, Europe

Philippe Clement / Male Great green bush cricket (Tettigonia viridissima) stridulating amongst Common broom (Cytisus scoparius) stalks, Belgium, August.

Philippe Clement / Male Great green bush cricket (Tettigonia viridissima) on Common broom (Cytisus scoparius) stalks, Belgium, August.

Juan Carlos Munoz / Common broom (Cytisus scoparius) in Pyrenean oak (Quercus pyrenaica) forest. Sierra de Guadarrama, Madrid, Spain. May, 2017.

Nick Upton / Teide wallflower (Erysimum scoparium), endemic to Tenerife, flowering on lava rock, Mount Teide, Teide National park, Tenerife, May.

Nick Upton / Teide wallflower (Erysimum scoparium), endemic to Tenerife, flowering among lava rock, Teide National Park, Tenerife, May.

Nick Upton / Three metre tall Mount Teide bugloss / Tower of jewels / Red Tajinaste (Echium wildpretii) flowering beside Teide wallflowers (Erysimum scoparium) on misty mountainside, Teide National Park, Tenerife,...

Nick Upton / Three metre tall Mount Teide bugloss (Echium wildpretii) flowering beside Teide wallflowers (Erysimum scoparium) on misty mountainside, Teide National Park, Tenerife, Canary Islands, May.

Nick Upton / Profusion of endemic wild flowers including Shrubby scabious (Pterocephalus lasiospermus), Teide wallflower (Erysimum scoparium), Teide sticky broom (Adenocarpus viscosus) and Teide white broom (Spart...

Nick Upton / Profusion of endemic wild flowers including Shrubby scabious (Pterocephalus lasiospermus), Teide wallflower (Erysimum scoparium), Teide sticky broom (Adenocarpus viscosus) and Teide white broom (Spart...

MYN / Niall Benvie / Broom (Cytisus scoparius) in flower, Scotland, UK, June.

MYN / Niall Benvie / Broom (Cytisus scoparius) in flower, Scotland, UK, May.

Philippe Clement / Common broom / Scotch broom (Cytisus scoparius) in flower, Belgium, April.

Florian Möllers / Common broom (Cytisus scoparius) growing on sand dunes at Lister Dune, Island of Sylt, Wadden Sea National Park, UNESCO World Heritage Site, Germany, June 2006.

Philippe Clement / Common Broom flowers and seed pods (Cytisus scoparius scoparius), La Brenne, France, May

Sandra Bartocha / Common Broom (Cytisus scoparius) Muritz National Park, Germany. May 2008

Sandra Bartocha / Common Broom (Cytisus scoparius) flowering, Muritz National Park, Germany. May

Wild Wonders of Europe / Tønning / Broom (Cytisus scoparius) flowering and Oak tree (Quercus sp) Oesling, Ardennes, Luxembourg, May 2009

Duncan Mcewan / Broom bush in flower {Cytisus scoparius} Loch Lochy, Scotland

Duncan Mcewan / Broom flower with seed pod {Cytisus scoparius} Scotland

Duncan Mcewan / sSingle Broom flower {Cytisus scoparius} Scotland

Simon Colmer / Yellow flower on Broom (Cytius scoparius) showing stamens, UK

Niall Benvie / Cornflower {Centaurea sp.} Estonia.

Niall Benvie / Broom flower {Cytisus scoparius} Scotland, UK.

Philippe Clement / Broom seed pod {Cytisus scoparius} Belgium

Philippe Clement / Broom shrub in flower {Cytisus scoparius} Belgium

Philippe Clement / Broom seed pod {Cytisus scoparius} Belgium

Duncan Mcewan / Broom bush in flower {Cytisus scoparius} Loch Rannoch, Scotland perthshire

Duncan Mcewan / Broom seed pods {Cytisus scoparius} Scotland, UK

Duncan Mcewan / Broom seed pods forming {Cytisus scoparius} Scotland, UK

Duncan Mcewan / Broom seed pods (Cytisus scoparius). Scotland, UK, Europe

Jan Vermeer / Scotch Broom (Cytisus scoparius) flowering, highly invasive weed native to Europe, introduced to North America

Edwin Giesbers / Canary pine trees (Pinus canariensis) and Teide / Mountain wallflowers (Erysimum scoparium) mountain slope, Teide National Park, Tenerife, Canary Islands

Edwin Giesbers / Teide wallflower (Erysimum scoparium) endemic to Tenerife, Teide National Park, Canary Islands; Spain, Europe.

Nick Upton / Canary Blue butterfly (Cyclyrius webbianus), a species endemic to the Canary Isles, nectaring on Teide wallflower (Erysimum scoparium), a Tenerife endemic, Teide National Park, Tenerife, August.