| tanacetum | (n) a large genus of plants resembling chrysanthemums; comprises some plants often included in other genera especially genus Chrysanthemum, Syn. genus Tanacetum |
| camphor dune tansy | (n) densely hairy plant with rayless flowers; San Francisco Bay area, Syn. Tanacetum camphoratum |
| costmary | (n) tansy-scented Eurasian perennial herb with buttonlike yellow flowers; used as potherb or salad green and sometimes for potpourri or tea or flavoring; sometimes placed in genus Chrysanthemum, Syn. Chrysanthemum balsamita, bible leaf, balsam herb, Tanacetum balsamita, alecost, mint geranium |
| dusty miller | (n) shrubby perennial of the Canary Islands having white flowers and leaves and hairy stems covered with dustlike down; sometimes placed in genus Chrysanthemum, Syn. silver lace, Tanacetum ptarmiciflorum, Chrysanthemum ptarmiciflorum, silver-lace |
| feverfew | (n) bushy aromatic European perennial herb having clusters of buttonlike white-rayed flower heads; valued traditionally for medicinal uses; sometimes placed in genus Chrysanthemum, Syn. Tanacetum parthenium, Chrysanthemum parthenium |
| northern dune tansy | (n) lightly hairy rhizomatous perennial having aromatic feathery leaves and stems bearing open clusters of small buttonlike yellow flowers; sand dunes of Pacific coast of North America, Syn. Tanacetum douglasii |
| painted daisy | (n) 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, Syn. Chrysanthemum coccineum, Tanacetum coccineum, pyrethrum |
| pyrethrum | (n) white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum, Syn. Chrysanthemum cinerariifolium, Dalmatia pyrethrum, Dalmatian pyrethrum, Tanacetum cinerariifolium |
| tansy | (n) common perennial aromatic herb native to Eurasia having buttonlike yellow flower heads and bitter-tasting pinnate leaves sometimes used medicinally, Syn. Tanacetum vulgare, scented fern, golden buttons |
| tanacetum | (n) a large genus of plants resembling chrysanthemums; comprises some plants often included in other genera especially genus Chrysanthemum, Syn. genus Tanacetum |
| camphor dune tansy | (n) densely hairy plant with rayless flowers; San Francisco Bay area, Syn. Tanacetum camphoratum |
| costmary | (n) tansy-scented Eurasian perennial herb with buttonlike yellow flowers; used as potherb or salad green and sometimes for potpourri or tea or flavoring; sometimes placed in genus Chrysanthemum, Syn. Chrysanthemum balsamita, bible leaf, balsam herb, Tanacetum balsamita, alecost, mint geranium |
| dusty miller | (n) shrubby perennial of the Canary Islands having white flowers and leaves and hairy stems covered with dustlike down; sometimes placed in genus Chrysanthemum, Syn. silver lace, Tanacetum ptarmiciflorum, Chrysanthemum ptarmiciflorum, silver-lace |
| feverfew | (n) bushy aromatic European perennial herb having clusters of buttonlike white-rayed flower heads; valued traditionally for medicinal uses; sometimes placed in genus Chrysanthemum, Syn. Tanacetum parthenium, Chrysanthemum parthenium |
| northern dune tansy | (n) lightly hairy rhizomatous perennial having aromatic feathery leaves and stems bearing open clusters of small buttonlike yellow flowers; sand dunes of Pacific coast of North America, Syn. Tanacetum douglasii |
| painted daisy | (n) 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, Syn. Chrysanthemum coccineum, Tanacetum coccineum, pyrethrum |
| pyrethrum | (n) white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum, Syn. Chrysanthemum cinerariifolium, Dalmatia pyrethrum, Dalmatian pyrethrum, Tanacetum cinerariifolium |
| tansy | (n) common perennial aromatic herb native to Eurasia having buttonlike yellow flower heads and bitter-tasting pinnate leaves sometimes used medicinally, Syn. Tanacetum vulgare, scented fern, golden buttons |