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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.
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.
During the 1930s Veratrum extracts were investigated in the treatment of high blood pressure in humans. However patients often had side effects due to the narrow therapeutic index of these products. Due to its toxicity, the use of Veratrum as a treatment for high blood pressure in humans was discontinued. [211] Vernicia fordii: tung tree ...
A mature cotton thistle, an invasive weed in Australia.. A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is harmful to agricultural or horticultural crops, natural habitats or ecosystems, or humans or livestock.
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Additionally, as fears regarding the recreational use of cannabis began to take hold (prompted by sensationalist media reports and government propaganda campaigns), [8] states began passing legislation to restrict the sale and possession of cannabis, eliminating its availability as an over-the-counter drug. [13]
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 ...