అర్థం : Made of dried flower heads of pyrethrum plants.

అర్థం : White-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below. Source of an insecticide. Sometimes placed in genus Chrysanthemum.

అర్థం : Spring-flowering garden perennial of Asiatic origin having finely divided aromatic leaves and white to pink-purple flowers. Source of an insecticide. Sometimes placed in genus Chrysanthemum.

అర్థం : Used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum.