It is a good bio-monitor of iron, manganese and zinc in atmospheric pollutants. Its scientific name is Senecio jacobaea of the Asteraceae family of plants. Cases of ragwort poisoning in cats are rare but do occur. Photo Credit: Kingcounty.gov. Tansy ragwort is a non-native, invasive terrestrial forb Tansy (Tanacetum vulgare) is a perennial, herbaceous flowering plant of the aster family, native to temperate Europe and Asia.It has been introduced to other parts of the world, including North America, and in some areas has become invasive.It is also known as common tansy, bitter buttons, cow bitter, or golden buttons.The Latin word vulgare means "common". Common tansy is easy to identify. Sheep and goats are quite tolerant of PA poisoning requiring 200-300% of their body weight in green tansy ragwort to develop fatal poisoning. Am. Tansy shouldn't be ingested since it can be toxic. Ragwort humans . Scientific Name: Senecio species. ... poisonings typically occur from ingestion of green plant material or material in hay. Tansy Ragwort. FIRST AID: The risk of serious illness and death is slight with this tansy. Ragwort Toxic Components Horses are particularly sensitive to the poisonous effects of ragwort, and tend to avoid it; however if horses References: 1. SAFETY IN PREPARED FEEDS: Toxicity of tansy ragwort (Senecio jacobaea) to goats. For information on ragwort and the law. Signs: Lethargy, diarrhea, weakness, crustiness around eyes/nose, Toxicity of pyrrolizidine alaaloids from Riddell groundsel (Senecio riddellii) to cattle. 43(2): 252-254 (5) Clinicopathologic studies of tansy ragwort toxicosis in ponies: sequential serum and histopathological changes AM Craig, EG Pearson, C Meyer, JA Schmitz - Journal of Equine Veterinary Science Volume 11, Issue 5, September–October 1991, Pages 261271 1991 The hills were painted with bright yellow Tansy Ragwort, and by the end of the trip Moo was literally covered with the yellow petals from the tansy after roaming through the brush. Toxic: Don't Eat! There is also a simple fuller non-technical explanation here Ragwort poisoning Humans. TOXICITY RATING: Low. Ragwort (Jacobaea vulgaris or Senecio jacobaea) is a biennial (sometimes annual or perennial) herbaceous flowering plant. Provide adequate and proper forage if the animals are eating this plant, and do not let pets nibble on the leaves or flowers. See The Weeds Act 1959 and in the Ragwort … The toxic components can cause liver failure, referred to as "walking disease" or "sleepy staggers". J. Vet. CLASS OF SIGNS: Salivating, colic, abdominal pain. The ragwort flea beetle is the workhorse of the tansy ragwort biocontrol program but fails to get credit because it is small and active in the fall during the rainy season. Above, an Oregon branded skipper rests on tansy ragwort flowers. Toxins: Pyrrolizidine alkaloids. The ragwort plant is a perennial herb that grows wild in fields all over the United States. Tansy ragwort exceeds the 1975 U.S. National Research Council protein and digestibility requirements for sheep for which it has been suggested as good summer feed. Additional Common Names: Golden Ragwort, Tansy. Toxic to animals with livers, tansy ragwort fills a gap in the seasonal need for nectar for some butterfliesand other insects. TANSY RAGWORT (Senecio jacobaea) Toxicity rating: High . Molyneux RJ, Johnson AE, Olsen JD, Baker DC. Status . Ragwort is also known by the names “golden ragwort”, “tansy” and “stinking willie”. Generally unpalatable to livestock, it is only eaten if there is no other food source. Toxic when fresh or in dry hay. Tansy ragwort is poisonous to humans and most pets, especially cats. It is considered an invasive weed in most parts of the world and is well known for its poisonous effects on livestock over the years. In fact, medieval midwifes administered tansy tea to women desiring an abortion. ANIMALS AFFECTED: All animals may be affected. Identifying Common Tansy. (Ann Potter photo) By Alex Meacham — Pernicious, invasive and even sometimes deadly for livestock, tansy ragwort has enjoyed a booming bloom this summer… The eighth-inch adults are golden in color and hop like a flea when disturbed. Am J … Animals affected: All animals, especially cattle and horses. Res. 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