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ragweed, ragwort, tansy ragwort, benweed, Senecio jacobaea | widespread European weed having yellow daisylike flowers; widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity ❲Senecio jacobaea❳ | ||
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butterweed, ragwort, Senecio glabellus | American ragwort with yellow flowers ❲Senecio glabellus❳ |