《英文msh词典》Pyrethum Daisy
[同义词] Pyrethum Daisy
[主题词] Chrysanthemum cinerariifolium
[英文释义] A plant species of the genus CHRYSANTHEMUM,family ASTERACEAE. The flowers contain PYRETHRINS,cinerolones,and chrysanthemines which are powerful contact insecticides. Most in the old Pyrethrum genus are reclassified to TANACETUM; some to other ASTERACEA genera.