Synonyms:

Pyrethrum; Tanacetum cinerariifolium. 

Uses:

Compositae plant that grows on rocky ground in Europe, Australia, Japan and N.America. The raw material for this product is made from an ethanol extraction of the plant/flowers of Chrysanthemum Cinerariaefolium.
Pyrethrum is the main source of the pyrethrum insecticide. Principal hapten is pyrethrosin. ICU.