Policeman's Helmet

Impatiens glandulifera is a large annual plant native to the Himalayas. Via human introduction it is now present across much of the Northern Hemisphere and considered an invasive species in some areas.

The common names Policeman's Helmet, Bobby Tops, Copper Tops, and Gnome's Hatstand all originate from the flowers being decidedly hat-shaped. Himalayan Balsam and Kiss-me-on-the-mountain arise from the plant originating in the Himalayan mountains.Ornamental jewelweed refers to its cultivation as an ornamental plant.

The genus name Impatiens, meaning "impatient", refers to its method of seed dispersal. The species name glandulifera comes from the Latin words glandis meaning 'gland', and ferre meaning 'to bear', referring to the plant's glands.

Description

It typically grows to 1 to 2 m (3.3 to 6.6 ft) high, with a soft green or red-tinged stem, and lanceolate leaves 5 to 23 cm (2.0 to 9.1 in) long. The crushed foliage has a strong musty smell. Below the leaf stems the plant has glands that produce a sticky, sweet-smelling, and edible nectar. The flowers are pink, with a hooded shape, 3 to 4 cm (1¼ to 1½ in) tall and 2 cm (¾ in) broad; the flower shape has been compared to a policeman's helmet.

After flowering between June and October, the plant forms seed pods 2 to 3 cm (¾ to 1¼ in) long and 8 mm broad (¼ in), which explode when disturbed, scattering the seeds up to 7 metres (23 feet).

The green seed pods, seeds, young leaves and shoots are all edible. The flowers can be turned into a jam or parfait.