'balsam herb' definitions:

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: costmary, alecost, bible leaf, mint geranium, balsam herb, Tanacetum balsamita, Chrysanthemum balsamita]