Also known as common tansy, cow buttons and bitter burrows, Tanacetum vulgare, or tansy, is native to warm parts of Europe and Asia. It has been introduced to North America, where in some places it's ...

The roadsides of these past few weeks have been a constant show of floral displays. The milkweeds, fireweeds and thistles that bloomed with purple flowers in midsummer were replaced by yellows of late ...

County farmers faced an onslaught of tansy ragwort in September 1949. With many crops still standing on farms throughout Clark County, the toxic weed’s spread happened at the worst possible time.

Tanacetum vulgare (commonly called common tansy, golden buttons, bitter buttons ... Tree marigold spreads rapidly like a weed and helps to fertilize soil by increasing levels of potassium, phosphorus, ...