Jacobaea Vulgaris

Senecio jacobaea (species), “Ragwort”, “Common Ragwort”, “Stinking Willie”, “Tansy Ragwort”, “Benweed”, “St. James-Wort”, “Saint James-Wort”, “Stinking Nanny”, “Stinking Ninny”, “Staggerwort”, “Dog Standard”, “Cankerwort”, “Stammerwort”

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On Wikipedia

Jacobaea vulgaris, syn. Senecio jacobaea, 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. Common names include ragwort, common ragwort, stinking willie, tansy ragwort, benweed, St. James-wort, stinking nanny/ninny/willy, staggerwort, dog standard, cankerwort, stammerwort. In the western United States it is generally known as tansy ragwort, or tansy, though its resemblance to the true tansy is superficial. Although the plant is often unwanted by landowners because of its toxic effect for cattle and horses, and because it is considered a weed by many, it provides a great deal of nectar for pollinators. It was rated in the top 10 for most nectar production (nectar…