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Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupatorium
''Eupatorium'' is a genus of flowering plants in the family Asteraceae, containing from 36 to 60 species depending on the classification system. Most are herbaceous perennials growing to tall. A few are shrubs. The genus is native to temperate regions of the Northern Hemisphere. Most are commonly called bonesets, thoroughworts or snakeroots in North America. The genus is named for Mithridates Eupator, king of Pontus. Systematics and taxonomy ''Eupatorium'' has at times been held to contain as many as 800 species, but many of these have been moved (at least by some authors) to other genera, including ''Ageratina'', ''Chromolaena'', '' Condylidium'', '' Conoclinium'', '' Critonia'', ''Cronquistianthus'', ''Eutrochium'', '' Fleischmannia'', '' Flyriella'', '' Hebeclinium'', '' Koanophyllon'', ''Mikania'', and '' Tamaulipa''. The classification of the tribe Eupatorieae, including species placed in ''Eupatorium'' in the present or past, is an area of ongoing research, so further ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
