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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.
Ragweed pollen is notorious for causing allergic reactions in humans, specifically allergic rhinitis. Up to half of all cases of pollen-related allergic rhinitis in North America are caused by ragweeds. [8] The most widespread species of the genus in North America is Ambrosia artemisiifolia.
The beetle is most effective when used in conjunction with the cinnabar moth (Tyria jacobaeae), another ragwort biocontrol agent. The beetle is not known to attack other plants. A close relative, Longitarsus ganglbaueri, which also feeds on ragwort, does attack other plant species; it is not used as a biocontrol agent for this reason.
Common ragweed, Ambrosia artemisiifolia, is a widespread invasive species, and can become a noxious weed, that has naturalized in Europe; temperate Asia and the Indian subcontinent; temperate northern and southern Africa and Macaronesia; Oceania in Australia, New Zealand, and Hawaii; and Southwestern North America in California and the ...
The U.S. population experienced an estimated 151 million excess mental health disorders attributable to exposure to lead from car exhaust, according to a study.
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Senecio ampullaceus, also known as Texas ragwort, [1] Texas squaw-weed, Texas groundsel, [3] and Texas butterweed, [4] is a species of Senecio in the family Asteraceae, receiving its Latin name ampullaceus from its flask shaped flower-head. [5] It is recommended for landscape use in its native Texas. [6]