MYN / JP Lawrence / Dame's rocket (Hesperis matronalis) invasive species, native to Europe. Wolf Lake, Michigan, USA, May. Meetyourneighbours.net project.

Fabrice Cahez / Dame's rocket (Hesperis matronalis) flowers, Vosges, France, June.

Fabrice Cahez / Dame's rocket (Hesperis matronalis) flowers, Vosges, France, June.

Philippe Clement / Sweet rocket / Dame's violet / Damask violet (Hesperis matronalis) in flower, National Botanic Garden of Belgium, May

Pascal Tordeux / Sweet Rocket / Dame's Rocket / Damask Violet (Hesperis matronalis). Picardy, France, June.

Linda Pitkin / Female Orange-tip butterfly (Anthocharis cardamines) feeding on Dame's violet (Hesperis matronalis) flower. River Ouse, Sussex, UK. May.

Linda Pitkin / Female Orange-tip butterfly (Anthocharis cardamines) feeding on Dame's violet (Hesperis matronalis) flower. River Ouse, Sussex, UK. May.

Linda Pitkin / Male Orange-tip butterfly (Anthocharis cardamines) feeding on Dame's violet (Hesperis matronalis) flower. River Ouse, Sussex, UK. May.

Linda Pitkin / Dame's violet (Hesperis matronalis) in flower. River Ouse, Sussex, UK. May.

Nick Upton / Dame's violet / Dame's rocket (Hesperis matronalis) flowering at woodland edge, West Sussex, UK. June.

Nick Upton / Dame's violet / Dame's rocket (Hesperis matronalis) flowering at woodland edge, West Sussex, UK. June.