: any of various composite plants (genus Chrysanthemum) including weeds, ornamentals grown for their brightly colored often double flower heads, and others important as sources of medicinals and insecticides
: a flower head of an ornamental chrysanthemum
Illustration of CHRYSANTHEMUM
Origin of CHRYSANTHEMUM
Latin, from Greek chrysanthemon,
flower; akin to Greek anthos
First Known Use: 1548
chrysanthemum noun (Concise Encyclopedia)
Any of the ornamental plants that make up the genus Chrysanthemum, in the aster family (Asteraceae). The genus includes about 100 species native primarily to subtropical and temperate areas of the Old World. Cultivated species, often called mums, have large flower heads; those of wild species are much smaller. Most species have aromatic, alternate leaves. Some have both disk and ray flowers in the heads; others lack ray flowers. Costmary (C. balsamita), marguerite, Shasta daisy (hybrid forms of C. maximum), florists' chrysanthemum (C. morifolium), feverfew (C. parthenium), corn marigold (C. segetum), and tansy are popular garden plants. Feverfew is used in insecticides; feverfew and tansy were formerly used in medicines.
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