Severely Invasive. [14] Invasive Himalayan balsam can also adversely affect indigenous species by attracting pollinators (e.g. Smooth, hollow, purple to reddish in colour. WATCH LIST. [16], In the UK, the plant was first introduced in 1839, at the same time as giant hogweed and Japanese knotweed. Himalayan Balsam originates from the Western Himalayas. It is fast-growing and spreads quickly, invading wet habitat at the expense of other, native flowers. Dead leaves and plant debris from the weed block waterways and lead to flooding. It produces seedpods which explode when ripe spreading the seeds up to … Differences. Leaves: This plant has long, toothed leaves 5-23 cm long. Himalayan balsam (Inpatiens glandulifera) is a large annually growing plant that is native to the Himalayan mountains. Impatiens glandulifera Royle. Himalayan Balsam - Himalayan Balsam is on the rise in the UK and prevents other plants from growing. Because of the colour and type of the stem it has occasionally been mistaken by the uninitiated for Japanese knotweed. History. Description: Herbaceous annual. Leaves. Himalayan balsam Impatiens glandulifera Royle . Flowers: Himalayan balsam’s pink flowers are a key ID feature in the late growing season. Himalayan balsam is a lovely plant with attractive flowers and a strong fragrance. The Himalayan Balsam is a very adaptable survivor, to the rear of my border in amongst the Atlantic Delpiniums, (which I've removed the flower stems from as they are over and done with,) there are maybe a hundred HB's, but they are only max 18 inches tall and single stemmed, yet over in the wet ground with the montbretia (now there's a plant you cant get rid of) and the various flavours of mints and aqualigia … The crushed foliage has a strong musty smell. The seeds have a pleasant nutty taste and seem better when pale in colour before turning black and becoming quite hard. ", "The biology of invasive alien plants in Canada. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. The species has spread widely from its native habitat. Smaller than Himalayan balsam, growing to a height of 1.2 Flower is similar in shape but orange in colour Orange balsam is much less aggressive than Himalayan balsam, forming dense stands . It was introduced to Canada in the early 1900s as an ornamental garden flower. Himalayan balsam grows up to 3 metres high with a hollow and bamboo-like stem, pink-red to green in colour with green vertical grooves. But Himalayan balsam is a problematic plant. Leslie J. Mehrhoff, University of Connecticut, Bugwood.org - Himalayan balsam leaves. at the heart of a living, working, active landscape valued by everyone. [12], In New Zealand it is sometimes found growing wild along riverbanks and wetlands. The common names policeman's helmet, bobby tops, copper tops, and gnome's hatstand all originate from the flowers being decidedly hat-shaped. Extent of range: In the United States, it … Himalayan Balsam (Impatiens glanulifera) is an attractive looking flower, with a stout, hollow stem, trumpet shaped pink/white flowers and elliptical shaped green leaves. It is vehemently hated by some and actively persecuted by others. [3] Ornamental jewelweed refers to its cultivation as an ornamental plant. Oval, tapering at both ends, 6-15 cm long (approx. Seeds: Himalayan balsam seed capsules will hold up to 16 seeds. The flowers have a hooded shape and look similar to a policeman’s helmet. Himalayan Balsam Scientific Name. The researchers caution that their conclusions probably do not hold true for stands of the plant at forest edges and meadow habitats, where manual destruction is still the best approach. No need to register, buy now! The flowers are hooded, giving the plant the alternate name of policeman's helmet. This species can tolerate many types of soils. The plant grows as a wildflower and is also planted in gardens. It has an explosive seed capsule, which scatters seeds over a distance of up to 7m. [17][18] These plants were all promoted at the time as having the virtues of "herculean proportions" and "splendid invasiveness" which meant that ordinary people could buy them for the cost of a packet of seeds to rival the expensive orchids grown in the greenhouses of the rich. Leaves are stalked, oblong to egg-shaped and have a serrated edge. 2.5-6 in.) Habitat: Himalayan balsam is an herbaceous, terrestrial, annual plant that thrives in riparian zones. Below the leaf stems the plant has glands that produce a sticky, sweet-smelling, and edible nectar. The crushed foliage has a strong musty smell. Other Common Names: Ornamental jewelweed, touch-me-not, Indian jewelweed, policeman’s helmet. You may be asked to provide your name and contact information if follow-up is needed. However, it does have some redeeming features and whilst I can understand the reasons for it being much despised I feel somebody has to speak up in support of this controversial but defenceless and, even though invidious of me to say it, invaluable plant! U.S. Distribution: Has been introduced to northern states on the east coast as well as the west coast, including Montana and Idaho. Unlike Japanese Knotweed, Himalayan Balsam propagates via seeds, which will explode upon touch when ready. It is now considered a pest in many countries throughout the world. 9. Himalayan balsam. 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. For the uniform cover, see. The flowers are pink, with a hooded shape, 3 to 4 cm (​1 ⁄4 to ​1 ⁄2 in) tall and 2 cm (​ ⁄4 in) broad; the flower shape has been compared to a policeman's helmet. It can be seen along several trails … (Impatiens glandulifera) Plants are very invasive and can cover large areas – particularly close to watercourses. "The Plant List: A Working List of All Plant Species", "Gastronomie: Springkraut & Co.: Kräuterkoch Peter Becker macht aus Neophyten Salat", "Which flowers are the best source of nectar? Himalayan balsam is the tallest annual plant in the UK, growing up to 2.5m; thus reaching the same height as some mature knotweed. It is also a vigorous producer of nectar, which draws pollinators away from native plants, putting their pollination and reproduction in jeopardy. Himalayan balsam (Impatiens glandulifera) is a relative of the busy Lizzie, but it reaches well over 6 foot, it is an invasive plant and is a major problem, particularly on riverbanks and waste land, but can also intrude gardens. Appearance. How to Identify Himalayan Balsam. The genus name Impatiens, meaning "impatient", refers to its method of seed dispersal. Leaves are 5 - … Natural Resources Wales has used manual methods, such as pulling plants and using strimmers, to largely eradicate Himalayan Balsam from reaches of the River Ystwyth. Plants in the native range often grow in clusters of 30-60 individuals, and are no more than 1.5m in height. Stems. Leaves are long, slender and shiny, with serrated edges and are dark green in colour. [13], Himalayan balsam is sometimes cultivated for its flowers. Plants have a poor root structure so it is relatively easy to remove. [20], The Royal Horticultural Society and the Centre for Ecology and Hydrology recommend that pulling and cutting is the main method of non-chemical control, and usually the most appropriate. The species name glandulifera comes from the Latin words glándula meaning 'small gland', and ferre meaning 'to bear', referring to the plant's glands. [2] Via human introduction it is now present across much of the Northern Hemisphere and is considered an invasive species in many areas. Himalayan Balsam. Annual herb that grows 1-3 m tall (approx. Leaves: Simple, long tapering, pointed, 2-9" long and serrate; occurring opposite or in whorls of 3. Impatiens glandulifera, known as Himalayan balsam, Indian balsam, policeman’s helmet and jewelweed, belongs to the Balsaminaceae family: the touch-me-not family. *Detected in Michigan* Impatiens glandulifera is a large annual plant native to the Himalayas. 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