Tansy is a perennial wildflower, native to the river valleys of Siberia. It is widespread across Europe mostly due to human introduction.
The plants bear clusters of pincushion-style, golden daisy flowers with no rays.
Tansy is found in rough grassland, riverbanks and verges.
Tansy is UNSAFE when taken by mouth. It contains a poisonous chemical called thujone. People have died after taking as little as 10 drops of tansy oil. Deaths have also been reported from prepared tansy teas or powdered forms. It is not recommended to use tansy as a medicine.