any of numerous perennial Old World herbs having showy brightly colored flower heads of the genera Chrysanthemum; Argyranthemum; Dendranthema; Tanacetum; widely cultivated
A genus of composite plants, mostly perennial, and of many species including the many varieties of garden chrysanthemums (annual and perennial), and also the feverfew and the oxeye daisy
A chrysanthemum is a large garden flower with many long, thin petals. Any of the ornamental plants that make up the genus Chrysanthemum, in the composite family. 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), pyrethrum, 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 and pyrethrum are used in insecticides; feverfew and tansy were formerly used in medicines