Felis Images / Touch-me-not (Impatiens falcifer) flower, Sikkim, India.

Felis Images / Touch me not (Impatiens) flower, West Bengal, India.

Nick Upton / Himalayan balsam (Impatiens glandulifera) flower and seed pods close to bursting, Wiltshire, UK, September.

Phil Savoie / Eastern bumblebee (Bombus impatiens) flying to Russian sage (Perovskia atriplicifolia), Wisconsin, USA, August.

Phil Savoie / Eastern bumblebee (Bombus impatiens) flying to Russian sage (Perovskia atriplicifolia), Wisconsin, USA, August.

Adrian Davies / Himalayan Balsam (Impatiens glandulifera) seeds bursting from pod. Ripe seed pods do this in the wild when hit by rain drops. Digital composite.

Alex Hyde / Orange balsam / Orange jewelweed (Impatiens capensis) Strumpshaw Fen, Norfolk, UK, September.

Philippe Clement / Touch-me-not balsam / yellow Balsam / wild balsam / jewelweed (Impatiens noli-tangere / Balsamina lutea) in flower, Belgium, August

Nick Upton / Eurasian beaver (Castor fiber) mother swimming and dragging a Himalayan balsam plant (Impatiens glandulifera) she has cut for her kits to feed on near their lodge, Devon, UK, July. Part of Devon Wildl...

MYN / Clay Bolt / Common eastern bumblebee (Bombus impatiens) with atypical coloration, South Carolina, USA, September. Meetyourneighbours.net project

MYN / Clay Bolt / Common eastern bumblebee (Bombus impatiens), South Carolina, USA, August. Meetyourneighbours.net project

Clay Bolt / Common eastern bumblebee (Bombus impatiens), Piedmont Prairie habitat, Clemson, South Carolina, USA, July.