Dalmatia pyrethrum, also known as Dalmatian chrysanthemum, is a flowering plant that is commonly used for insect repellent and pest control. Synonyms for this plant include Tanacetum cinerariifolium, Chrysanthemum cinerariifolium, and Pyrethrum tanacetifolium. These synonyms refer to the same plant species and are sometimes used interchangeably. Dalmatia pyrethrum is native to the Mediterranean region, particularly in Croatia's Dalmatia region, which is where its common name comes from. It is grown for its extract, which contains natural insecticidal compounds called pyrethrins, which are commonly used as active ingredients in insecticides. Despite their potency, pyrethrins are considered relatively safe for humans and the environment.