![]() ![]() It grows in lowland areas and is considered a significant threat to park ecosystems. In Olympic National Park, Scot’s broom is found in large populations on the coast, along Highway 101 and other road corridors, and other disturbed and non-wooded areas. It can propel its seeds up to 10 feet from the plant and they may stay viable as long as 70 years later. It is a Class B weed in Washington State, which means it should be contained within current boundaries to prevent further spread. It is very aggressive and is infamous along the coast from British Columbia to California. Scot’s broom was introduced from Europe to coastal California as an ornamental and soil binder. The “pea pod” legume is flat, has several seeds, and is olive to reddish-brown. Yellow flowers are irregularly-shaped, solitary or in pairs, and have 5 petals. The leaves are mostly composed of three smaller, pointed leaflets. The many green branches are woody, slender, and stiff. Scot's broom is a perennial member of the pea family. It is widely distributed throughout the Pacific Northwest on disturbed sites. It is often seen in fields or alongside roads. ![]() dissertation.This shrub has bright yellow flowers that grow into pea pod-like fruits. Assessing the potential of invasiveness in woody plants introduced in North America. Pacific Northwest Exotic Pest Plant Council, 1998 John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007 This map identifies those states that list this species on their invasive species list or law. Reports made by experts and records obtained from USDA Plants Database. This map is incomplete and is based only on current site and county level USDA NRCS PLANTS Database, USDA NRCS PLANTS Database, Illustrated flora of the northern states and Canada. Suzanne Foster, USDA NRCS PLANTS Database, Ciesla, Forest Health Management International, Gil Wojciech, Polish Forest Research Institute, Tom Heutte, USDA Forest Service, įruit(s) Growing to 1.5 m in height. Element Stewardship Abstract - The Nature ConservancyĮric Coombs, Oregon Department of Agriculture,.Identification, Biology, Control and Management Resources It was introduced into the United States as an ornamental in the early 1800s. Cytisus scoparius is native to western and central Europe. It has been considered a pest weed since the 1920’s on the West Coast. Its nitrogen fixing ability allows it to compete successfully on poor, dry, sandy soils. Ecological Threat Cytisus scoparius occurs along roadsides, coastal sites, disturbed sites, pastures, and dry scrubland. The seeds are small and multi-colored, ranging from green to brown to reddish brown. (2.5-5 cm) long, and will explode when mature forcefully expelling the seeds. Fruit Seed pods are fuzzy on the edges, 1-2 in. On the east and west coasts of North America, common broom (Cytisus scoparius) was introduced as an ornamental plant (e.g.:California since the 1860s). Flowers The flowers are bright yellow, resemble sweet pea flowers, and occur singly or in pairs in the upper leaf axils. The leaves are often not noticeable, due to the dark green stems. Foliage Leaves are small, alternate and compound with 3 leaflets. The stems are five-angled and remain green all year. Native Range: Central and Southern Europe ( REHD, BAIL) Īppearance Cytisus scoparius is a perennial shrub that grows on average from 3.3-9.8 ft. Synonym(s): Scottish broom, English broom, scotchbroom Taxonomic Rank: Magnoliopsida: Fabales: Fabaceae Jump to: Resources | Images | Distribution Maps | Sources ![]()
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