Jacobaea vulgaris

Common card · No. 315687

Jacobaea vulgaris, synonym 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, cushag, 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. In the British Isles, where it is native, it is considered ecologically important due to its nectar and stems being fed from by multiple insects such as the Cinnabar moth. It is often treated as a weed in pastures because of its toxic effect for cattle and horses, it is also toxic to humans. In some locations it is an invasive species.

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