Erigeron Canadensis is a widely used herb in traditional medicine due to its antimicrobial, anti-inflammatory and antioxidant properties. This herb belongs to the Asteraceae family and is commonly known as Canadian fleabane or horseweed. Its synonyms include Conyza canadensis, Fleabane, Butterweed, Mare's Tail, American horseweed, and Fireweed. Erigeron Canadensis can be found growing in the wild, though it is now widely cultivated for its medicinal properties. Its leaves, flowers, and roots are used to treat a variety of ailments like gastrointestinal disorders, respiratory infections, skin conditions, and menstrual cramps. Overall, Erigeron Canadensis and its synonyms have been used as an effective natural remedy for centuries and remain an important part of traditional medicine today.