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Noun
pyrethrum
Definition: made of dried flower heads of pyrethrum plants
pyrethrum
Dalmatian pyrethrum
Dalmatia pyrethrum
Tanacetum cinerariifolium
Chrysanthemum cinerariifolium
Definition: white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
painted daisy
pyrethrum
Tanacetum coccineum
Chrysanthemum coccineum
Definition: 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
Pyrethrum
genus Pyrethrum
Definition: used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
Definition: Any of several daisy-like perennial African plants of the genus Tanacetum, especially Tanacetum cinerariifolium.