Definitions for



Overview of noun pyrethrum

The noun pyrethrum has 4 senses? (no senses from tagged texts)
1. pyrethrum

(made of dried flower heads of pyrethrum plants)

2. pyrethrum, Dalmatian pyrethrum, Dalmatia pyrethrum, Tanacetum cinerariifolium, Chrysanthemum cinerariifolium

(white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum)

3. painted daisy, pyrethrum, Tanacetum coccineum, Chrysanthemum coccineum

(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)

4. Pyrethrum, genus Pyrethrum

(used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum)

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