What is Calendula?
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 corn marigold, desert marigold, marsh marigold, and plants of the genus Tagetes. The name calendula is a invariably derive from Cofficinalis.