Chrysanthemum is a beautiful flower with a really nice smell and an interesting story dating many years back in time. They are flowering plants of the genus Chrysanthemum in the family Asteraceae. The name “chrysanthemum” is derived from the Ancient Greek and more specifically chrysos (gold) and Ancient Greek anthemon (flower). A ruling of the International Botanical Congress in 1999 changed the defining species of the genus to Chrysanthemum indicum, restoring the florist’s chrysanthemums to the genus Chrysanthemum. Unfortunately, just planting a couple of mums won’t free you of mosquitoes, but oil extracted from the flowers of certain chrysanthemum species has been used in insecticides for centuries.