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ragwort    
n. 刘寄奴属植物

刘寄奴属植物

ragwort
n 1: widespread European weed having yellow daisylike flowers;
sometimes an obnoxious weed and toxic to cattle if consumed
in quantity [synonym: {ragwort}, {tansy ragwort}, {ragweed},
{benweed}, {Senecio jacobaea}]
2: American ragwort with yellow flowers [synonym: {butterweed},
{ragwort}, {Senecio glabellus}]


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  • Jacobaea vulgaris - Wikipedia
    Jacobaea vulgaris, synonym Senecio jacobaea, [2] is a very common wild flower in the family Asteraceae that is native to northern Eurasia, usually in dry, open places, and has also been widely distributed as a weed elsewhere
  • Ragworts (Groundsels) - Missouri Department of Conservation
    Ragworts or groundsels have several common names, and separating the different species can be a little tricky But members of genus Packera, with their bright yellow daisy-like flowers, are distinctive as a group Seven species have been recorded in Missouri
  • Is Ragwort a Weed? Understanding the Risks and Removal
    Ragwort is a highly toxic noxious weed Discover its risks to livestock, legal status, and practical, safe strategies for removal and disposal
  • Common ragwort - The Wildlife Trusts
    Ragwort is the foodplant of the black-and-red cinnabar moth: sometimes its black-and yellow-barred caterpillars cover the plant, totally stripping the leaves Common ragwort is a biennial, flowering in its second year from June to November
  • Ragwort - North Carolina Extension Gardener Plant Toolbox
    Native to Europe, North Africa and temperate Asia, it is believed to have arrived in North America mixed with grain that was brought by settlers The common name comes from the Anglo-Saxon word groundeswelge, translating to 'ground swallower' which describes how quickly this weedy annual can spread
  • Understanding Ragwort Species: Identification and Control Methods . . .
    Discover the unique characteristics, uses, and risks associated with ragwort species, including its medicinal properties, insect repellent effects, and potential toxicity to livestock Learn effective control methods and conservation strategies for managing this invasive plant
  • Exotic Species: Tansy Ragwort - U. S. National Park Service
    Native to Europe and western Asia, tansy ragwort (Senecio jacobaea) now occurs in portions of the West, Midwest, and Northwest United States Tansy ragwort was first reported in North America in British Columbia in 1913 Tansy ragwort grows best in cool, moist climates, on light, well-drained soils
  • This pretty flower is essential for pollinating insects, yet deadly for . . .
    Learn what ragwort is, where it can be found, benefits and the dangers associated with it in our expert ragwort guide What is ragwort? Ragwort is a tall plant that grows to 90cm high and bears large, flat-topped clusters of yellow daisy-like flowers from July to October
  • Golden Ragwort - USDA
    Landscaping and Wildlife: Golden Ragwort is a beautiful plant in flower and makes an effective groundcover even in dry shade conditions For these reasons it is often used in native landscape gardens and meadow plantings It also has potential as a component of conservation mixes
  • Management practices for control of ragwort species - PMC
    Commonly used management practices to control ragwort include mechanical removal, grazing, pasture management, biological control and chemical control In this review the biology of ragwort species is shortly described and the different management practices are discussed





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