![]() ![]() Despite its name, boneset is not used to treat broken bones, instead the common name apparently derives from the herb's use to treat dengue fever, which was also called breakbone fever because of the pain that it caused. The common names for the plants are all based on the previous usage of one species, Eupatorium perfoliatum, as an herbal medicine. The foliage is eaten by some Lepidoptera larvae, including those of Orthonama obstipata (The Gem). Tobacco leaf curl virus is a pathogen occasionally affecting plants of this genus. A number of popular ornamental plants formerly included in Eupatorium have been moved to other genera, such as Bartlettina and Conoclinium. Uses Įupatorium are grown as ornamental plants, particularly in Asia. What seems fairly certain by now is that there is a monophyletic group containing Eupatorium (about 42 species of white flowered plants in North America, Europe and Asia, but not South America) and the Joe-pye weeds ( Eutrochium), and possibly others. ![]() The classification of the tribe Eupatorieae, including species placed in Eupatorium in the present or past, is an area of ongoing research, so further changes are likely. Systematics and taxonomy Įupatorium 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,Ĭondylidium, Conoclinium, Critonia, Cronquistianthus, Eutrochium, Fleischmannia, Flyriella, Hebeclinium, Koanophyllon, Mikania, and Tamaulipa. The genus is named for Mithridates Eupator, king of Pontus. Most are commonly called bonesets, thoroughworts or snakeroots in North America. The genus is native to temperate regions of the Northern Hemisphere. Most are herbaceous perennials growing to 0.5–3 m (1.6–9.8 ft) tall. ![]() Eupatorium is a genus of flowering plants in the family Asteraceae, containing from 36 to 60 species depending on the classification system. ![]()
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