Genus Onopordon refers to a plant genus in the Asteraceae family commonly known as Cotton Thistle. The word "Onopordon" is derived from the Greek words "onos" meaning donkey and "pordon" meaning thistle. Some synonyms for Genus Onopordon include the Onopordum, which represents the old name for the genus, while other synonyms include the Cotton thistle, Scotch thistle, and woolly thistle. These plants are known for their large, grey-green leaves and long, spiny stems that can grow up to two meters in height. They also produce bright pink or purple flowers that bloom in the summer months. In traditional medicine, the Cotton Thistle has been used to treat liver disorders and respiratory diseases.