| 释义 |
Noun: pyrethrum pI'reethrum- Made of dried flower heads of pyrethrum plants
- White-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
- Dalmatian pyrethrum, Dalmatia pyrethrum, Tanacetum cinerariifolium, Chrysanthemum cinerariifolium - 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
- painted daisy, Tanacetum coccineum, Chrysanthemum coccineum
Noun: Pyrethrum- Used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum
- genus Pyrethrum
Derived forms: pyrethrums Type of: asterid dicot genus, flower, herb, herbaceous plant, insect powder, insecticide Part of: aster family, Asteraceae, Compositae, family Asteraceae, family Compositae, genus Tanacetum, Tanacetum Encyclopedia: Pyrethrum |