Common Name: Common Tansy
Scientific Name: Tanacetum vulgare L.
Efforts must be made to prevent seed maturation and dispersal of plants into new areas. Additionally, no transportation, propagation, or sale of these plants is allowed. Failure to comply may result in enforcement action by the county or local municipality. Minnesota Noxious Weed Law
Common tansy is native to Eurasia. It was brought to the US in the 1600s as an ornamental plant with medicinal uses. From the east coast, it has naturalized and slowly spread westward over time.
Found growing in a wide range of habitats. Typically infests disturbed habitats and is commonly found along roadsides, trails, natural areas, pastures, forest and field margins, mining areas, and unmaintained gravel pits.
Spreads primarily by rhizomes and seeds. Seeds are lightweight and easily moved by wind, water, wildlife, equipment, etc. Prevalent through the northern half to three-quarters of the state and continues to spread south. The densest populations extend from north-central Minnesota east to Lake Superior and Wisconsin. View common tansy distribution.
It is highly invasive and therefore can severely reduce pasture capacity and desirable forage. In some instances it can be toxic to livestock if consumed. Common tansy can also degrade wildlife habitat, hinder reforestation and landscape restoration efforts.
MDA Noxious Weed Program
County Ag Inspectors