Tanacetum is a genus of flowering plants that belongs to the Asteraceae or Compositae family. Some synonyms for tanacetum include chrysanthemum, which is derived from the Greek words "khrusos" or "gold" and "anthemon" or "flower." Another synonym is the common name feverfew, which has been used to treat migraine headaches and fever for centuries. Some species of Tanacetum have been used for their medicinal properties, such as T. parthenium, which contains parthenolide, a compound that has been shown to have anti-inflammatory and anti-tumor effects. Other synonyms for tanacetum include bachelor's buttons, oxeye daisy, and dusty miller.