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In the United Kingdom, common ragwort (Senecio jacobaea) is one of the five plants named as an injurious weed under the provisions of the Weeds Act 1959. The word injurious in this context indicates that it could be harmful to agriculture, not that it is dangerous to animals, as all the other injurious weeds listed are non-toxic.
Packera aurea (formerly Senecio aureus), commonly known as golden ragwort or simply ragwort, is a perennial flower in the family Asteraceae.. It is also known as golden groundsel, squaw weed, life root, golden Senecio, uncum, uncum root, waw weed, false valerian, cough weed, female regulator, cocash weed, ragweed, staggerwort, and St. James wort.
A ragwort plant can produce around 30,000 to 120,000 seeds but as this is a native plant in the UK these would on average only create one new plant. It can be toxic to livestock if it is contained in hay and it contains several kinds of Pyrrolizidine alkaloid which can, if the dose is high enough, cause liver damage .
The Ragwort Control Act 2003 (c 40) is an Act of the Parliament of the United Kingdom. It creates guidance as a Code of Practice on Ragwort Control, [ 5 ] but does not force control, create a responsibility to control or make growing the plant a criminal offence.
Longitarsus jacobaeae is a species of flea beetle known as the tansy ragwort flea beetle. It is used as an agent of biological pest control against the nectar-rich noxious weed known as ragwort ( Senecio jacobaea reclassified as Jacobaea vulgaris ).
Stinkwort – Various plants including Helleborus foetidus, the stinking hellebore; Dittrichia graveolens and Inula graveolens; and Datura stramonium, jimson weed. Stitchwort - Any of several plants of the genus Stellaria. Stichwort. St. James' Wort - Senecio jacobaea or Senecio aureus, two species of ragwort.
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Senecio madagascariensis contains pyrrolizidine alkaloids and is poisonous. [10] Horses, cattle, and other livestock are at risk. Symptoms of poisoning from fireweed include gradual weight loss, jaundice, fluid in the lungs, blindness, sudden death without any other indications, aimless wandering, muscular coordination, twitching of the head muscles, abdominal straining, rectal prolapse, and ...
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