Policeman's Helmet—Impatiens glandulifera

Impatiens, meaning "impatient", refers to Impatiens glandulifera's method of seed dispersal: the seed pods explode when disturbed.

In German, it is referred to as Springkraut ("jumping herb"). Impatiens glandulifera is native to the Himalayas, but due to human action is now present across much of the Northern Hemisphere. It typically grows to 1 to 2 m, the flower has a distinct shape, giving rise to the common name Policeman's Helmet. In some cases Impatiens glandulifera is becoming an invasive species weed. In the UK they were promoted as a way for ordinary people to rival the expensive orchids grown in the greenhouses of the rich, simply for the cost of a packet of seeds. Under the "Alberta Weed Control Act" of 2010 it is considered a "prohibited noxious weed".

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