Leucanthemum vulgare, also known as oxeye daisy, is a widespread flowering plant native to Europe and temperate regions of Asia. It is a member of the family Asteraceae and is called by several common names such as dog daisy, marguerite, and moon daisy. This typical grassland wildflower grows in various plant communities, including meadows, fields, and disturbed areas. It is also used in traditional medicine, with distillates made from flower extract effectively treating conjunctivitis. The unopened flower buds can be marinated and used similarly to capers. Leucanthemum vulgare is widely cultivated as a perennial flowering ornamental plant and is available in various cultivars. However, it is invasive in some areas, forming dense colonies that displace native plants and is classified as a noxious weed. It is also a host for several viral diseases affecting crops. Allergies to daisies do occur, usually causing contact dermatitis.