Jisho

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Wikipedia definition
1. PyrethrumPyrethrum refers to several Old World plants of the genus Chrysanthemum (e.g. , C. coccineum) which are cultivated as ornamentals for their showy flower heads. Pyrethrum is also the name of a natural insecticide made from the dried flower heads of Chrysanthemum cinerariifolium and Chrysanthemum coccineum.
Read “Pyrethrum” on English Wikipedia
Read “シロバナムシヨケギク” on Japanese Wikipedia
Read “Pyrethrum” on DBpedia

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