Congo cockatoo

Description

Impatiens niamniamensis, common name Congo cockatoo, parrot impatiens or simply parrot plant, is a species of flowering plant in the family Balsaminaceae. Impatiens niamniamensis grows about 60–90 centimetres (24–35 in) long. This evergreen, perennial species has an erect, succulent, brown stem resembling wood. Leaves are simple, ovate-oblong or elliptical, spirally arranged, about 10 cm long. This plant produces bright and colourful bird-shaped flowers (hence the common names Congo cockatoo and parrot plant) with a long, curled nectar spur. These unusual flowers vary in colour and size, but those of the clone most common in cultivation in Europe and America ('African Princess') are usually scarlet red and yellow and can reach a length of about 3.5 centimetres (1.4 in). Fruits are explosive capsules of about 14–16 mm. Impatiens niamniamensis comes from tropical Africa. It can be found from Cameroon throughout tropical Africa, up to Sudan and down to the Democratic Republic of the Congo. It grows in moist and shaded bushlands, at an elevation of 350–2,400 metres (1,150–7,870 ft) above sea level. This plant is widely cultivated. In temperate zones it requires protection from temperatures below 10 °C (50 °F). It needs a sheltered position in a partially shaded spot. Impatiens niamniamensis has gained the Royal Horticultural Society's Award of Garden Merit. Impatiens is a genus of more than 1,000 species of flowering plants, widely distributed throughout the Northern Hemisphere and the tropics. Together with the genus Hydrocera (one species), Impatiens make up the family Balsaminaceae. Common names in North America include impatiens, jewelweed, touch-me-not, snapweed and patience. As a rule-of-thumb, "jewelweed" is used exclusively for Nearctic species, and balsam is usually applied to tropical species. In the British Isles by far the most common names are impatiens and busy lizzie, especially for the many varieties, hybrids and cultivars involving Impatiens walleriana. "Busy lizzie" is also found in the American literature. The invasive alien Impatiens glandulifera is commonly called policeman's helmet in the UK.