Associations to the word «Pyrethrum»

PYRETHRUM, noun. Any of several daisy-like perennial African plants of the genus Tanacetum, especially Tanacetum cinerariifolium

PYRETHRUM, noun. (organic compound) Any of several insecticides obtained from these plants; pyrethrin

PYRETHRUM, noun. Made of dried flower heads of pyrethrum plants.

PYRETHRUM, noun. White-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum.

PYRETHRUM, noun. 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, noun. Used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum.