![]() Scotch broom invasion may also increase fire hazard under some conditions, although the details of these conditions are not entirely clear (see Fire hazard potential). ![]() These include interference with native plants and animals, interference with desirable species in forest plantations, and impacts on soil properties and processes. Impacts of Scotch broom invasion are suggested or described by several authors. A review by Alvarez indicates that it displaces native herbaceous and woody plant species, its seeds are toxic to ungulates, and mature shoots are unpalatable. Little information is available in the literature regarding impacts of Portuguese broom invasion. These plants are often restricted to disturbed ground, and are not especially invasive in undisturbed natural habitats. Scotch broom is classified as a "Category 3," widespread, nonnative species by the USDA, Forest Service, Eastern Region. Scotch broom is considered a "serious, documented threat to sensitive species or ecosystems" especially in the South Coast, Central Coast, North Coast, and Sierra Nevada bioregions. Impacts: Rankings - Portuguese broom is listed by the California Invasive Plant Council as one of the most invasive wildland pest plants with regional distribution in California, and Scotch broom is listed as one of the most invasive wildland pest plants with widespread distribution in the state. ![]() More info for the terms: cover, density, fire management, formation, interference, invasive species, natural, nonnative species, presence, restoration, shrub, shrubs, tree In other English-speaking countries, the most prevalent common name is Scot In Britain and Ireland, the standard name is broom, but this name is also used for other members of the Genisteae tribe, such as French broom or Spanish broom, and the term common broom is sometimes used for clarification. Sarothamnus scoparius, is a perennial leguminous shrub native to western and central Europe. ![]() Cytisus scoparius, the common broom or Scotch broom, syn. ![]()
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