Calendula, marigold, is a genus of about 15–20 species of annual and perennial herbaceous plants in the daisy family Asteraceae. They are native to southwestern Asia, Western Europe, Macaronesia and the Mediterranean. Other plants are also known as marigolds, such as com marigold, desert marigold, Marsh marigold and plants of the genus Targets. The name calendula is a modern Latin diminutive of calendae, meaning "little calendar", "little clock" or possibly "little weather-glass". The common name "marigold" refers to the Virgin Mary. Calendu...