Eupatorium
Encyclopedia
Eupatorium is a genus
of flowering plant
s in the aster family, Asteraceae
, containing from 36 to 60 species
depending on the classification system. Most are herbaceous
perennial plant
s growing to 0.5–3 m tall. A few are shrub
s. The genus is native to temperate
regions of the Northern Hemisphere
. Most are commonly called bonesets, thoroughworts or snakeroots. The genus is named for Mithridates Eupator
, king of Pontus
.
,
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 changes are likely. 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.
s, in particular in Asia. A number of popular ornamental plants formerly included in Eupatorium have been moved to other genera, such as Bartlettina
and Conoclinium
.
Tobacco leaf curl virus
is a pathogen
occasionally affecting plants of this genus. The foliage is eaten by some Lepidoptera
larvae, including those of Orthonama obstipata (The Gem).
ous to humans and grazing livestock
, has been used in folk medicine
, for instance to excrete excess uric acid
which causes gout
.
Caution is advised when using boneset, since it contains toxic compounds that can cause liver
damage. Side effects include muscular tremors, weakness, and constipation
; overdoses may be deadly.
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of flowering plant
Flowering plant
The flowering plants , also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies...
s in the aster family, Asteraceae
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...
, containing from 36 to 60 species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
depending on the classification system. Most are herbaceous
Herbaceous plant
A herbaceous plant is a plant that has leaves and stems that die down at the end of the growing season to the soil level. They have no persistent woody stem above ground...
perennial plant
Perennial plant
A perennial plant or simply perennial is a plant that lives for more than two years. The term is often used to differentiate a plant from shorter lived annuals and biennials. The term is sometimes misused by commercial gardeners or horticulturalists to describe only herbaceous perennials...
s growing to 0.5–3 m tall. A few are shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...
s. The genus is native to temperate
Temperate
In geography, temperate or tepid latitudes of the globe lie between the tropics and the polar circles. The changes in these regions between summer and winter are generally relatively moderate, rather than extreme hot or cold...
regions of the Northern Hemisphere
Northern Hemisphere
The Northern Hemisphere is the half of a planet that is north of its equator—the word hemisphere literally means “half sphere”. It is also that half of the celestial sphere north of the celestial equator...
. Most are commonly called bonesets, thoroughworts or snakeroots. The genus is named for Mithridates Eupator
Mithridates VI of Pontus
Mithridates VI or Mithradates VI Mithradates , from Old Persian Mithradatha, "gift of Mithra"; 134 BC – 63 BC, also known as Mithradates the Great and Eupator Dionysius, was king of Pontus and Armenia Minor in northern Anatolia from about 120 BC to 63 BC...
, king of Pontus
Pontus
Pontus or Pontos is a historical Greek designation for a region on the southern coast of the Black Sea, located in modern-day northeastern Turkey. The name was applied to the coastal region in antiquity by the Greeks who colonized the area, and derived from the Greek name of the Black Sea: Πόντος...
.
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, ChromolaenaChromolaena
Chromolaena is a genus of about 165 species of perennials and shrubs in the aster family, Asteraceae. The name is derived from the Greek words χρῶμα , meaning "color," and λαινα , meaning "cloak." It refers to the colored phyllaries of some species...
,
Condylidium
Condylidium
Condylidium is a genus of flowering plants in the daisy family, Asteraceae....
, Conoclinium
Conoclinium
Conoclinium, the mistflowers, is a genus of four species of herbaceous perennial flowering plants, native to North America. They are tall, and have blue to purple or violet flowers ....
, Critonia
Critonia
Critonia is a genus of flowering plant in the Asteraceae family.It contains the following species:* Critonia eggersii - Ecuador* Critonia morifolia - Bolivia...
, Cronquistianthus
Cronquistianthus
Cronquistianthus consists of 25 species of shrubs native to the Andes in Colombia, Ecuador, and Peru.The genus is named after the botanist Arthur John Cronquist .It contains the following species:* Cronquistianthus bulliferus...
, Eutrochium
Eutrochium
Eutrochium is a genus of herbaceous flowering plants in Asteraceae. They are commonly referred to as Joe-Pye weeds. They are native to Eastern North America and have non-dissected foliage and pigmented flowers. It includes all the purple flowering North American species of the genus Eupatorium as...
, Fleischmannia
Fleischmannia
Fleischmannia is a genus of flowering plant in the Asteraceae family. The name honours Gottfried F. Fleischmann , the teacher of Carl Heinrich Schultz at Erlangen. Members of the genus are native to South, Central, and North America, with some species found as far north as Virginia and Illinois...
, Flyriella
Flyriella
Flyriella is a genus of perennial flowering plants in Asteraceae, and the species are commonly called Brickellbush. They are native to Texas and Mexico. It includes the below species:...
, Hebeclinium
Hebeclinium
Hebeclinium is a genus of flowering plant in the Asteraceae family. Places where it is found include Costa Rica, Colombia, Ecuador, Peru, and Bolivia.A partial list of species is:* Hebeclinium macrophyllum* Hebeclinium obtusisquamosum...
, Koanophyllon
Koanophyllon
Koanophyllon is a genus of 115 species of flowering plants in the Asteraceae family. They are perennials and shrubs and are native to South America, Central America, the West Indies, Mexico, with a few species range extending into the United States...
, Mikania
Mikania
Mikania is a genus of about 450 species in the family of Asteraceae.The name honors the Czech botanist Johann Christian Mikan. Members of the genus are stem twiners and lianas and are common in the neotropical flora. Mikania originates from South America...
, and Tamaulipa
Tamaulipa
Tamaulipa is a genus of flowering plants in the aster family, Asteraceae. The sole species it contains, Tamaulipa azurea, is commonly known as Blue Boneset. The generic name refers the Tamaulipan mezquital of southern Texas and northeastern Mexico, where this species is endemic...
.
The classification of the tribe Eupatorieae
Eupatorieae
Eupatorieae is a tribe of over 2000 species of plants in the aster family. Most of the species are native to tropical, subtropical, and warm temperate areas of the Americas, but some are found elsewhere...
, including species placed in Eupatorium in the present or past, is an area of ongoing research, so further changes are likely. What seems fairly certain by now is that there is a monophyletic
Monophyly
In common cladistic usage, a monophyletic group is a taxon which forms a clade, meaning that it contains all the descendants of the possibly hypothetical closest common ancestor of the members of the group. The term is synonymous with the uncommon term holophyly...
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
Eutrochium
Eutrochium is a genus of herbaceous flowering plants in Asteraceae. They are commonly referred to as Joe-Pye weeds. They are native to Eastern North America and have non-dissected foliage and pigmented flowers. It includes all the purple flowering North American species of the genus Eupatorium as...
), and possibly others.
Uses
Eupatorium are grown as ornamental plantOrnamental plant
Ornamental plants are plants that are grown for decorative purposes in gardens and landscape design projects, as house plants, for cut flowers and specimen display...
s, in particular in Asia. A number of popular ornamental plants formerly included in Eupatorium have been moved to other genera, such as Bartlettina
Bartlettina
Bartlettina is a genus of about 37 species of flowering plants in the Asteraceae family. They are native to tropical America although one species, B...
and Conoclinium
Conoclinium
Conoclinium, the mistflowers, is a genus of four species of herbaceous perennial flowering plants, native to North America. They are tall, and have blue to purple or violet flowers ....
.
Tobacco leaf curl virus
Tobacco leaf curl virus
Tobacco leaf curl virus is a plant pathogenic virus of the family Geminiviridae.-External links:**...
is a pathogen
Pathogen
A pathogen gignomai "I give birth to") or infectious agent — colloquially, a germ — is a microbe or microorganism such as a virus, bacterium, prion, or fungus that causes disease in its animal or plant host...
occasionally affecting plants of this genus. The foliage is eaten by some Lepidoptera
Lepidoptera
Lepidoptera is a large order of insects that includes moths and butterflies . It is one of the most widespread and widely recognizable insect orders in the world, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...
larvae, including those of Orthonama obstipata (The Gem).
Medical use
The common names for the plants are all based on the previous usage of one species, Eupatorium perfoliatum, as an herbal medicine. Boneset alludes to the use of the plant to treat broken bones, although it may also come from its use to treat dengue fever, which was also called breakbone fever because of the pain that it caused. The name thoroughwort also comes from Eupatorium perfoliatum, and refers to the perfoliate leaves, in which the stem appears to pierce (i.e. go through, note that in older usage "thorough" was not distinguished from "through", compare for example the word thoroughfare) the leaf. Boneset, although poisonPoison
In the context of biology, poisons are substances that can cause disturbances to organisms, usually by chemical reaction or other activity on the molecular scale, when a sufficient quantity is absorbed by an organism....
ous to humans and grazing livestock
Livestock
Livestock refers to one or more domesticated animals raised in an agricultural setting to produce commodities such as food, fiber and labor. The term "livestock" as used in this article does not include poultry or farmed fish; however the inclusion of these, especially poultry, within the meaning...
, has been used in folk medicine
Folk medicine
-Description:Refers to healing practices and ideas of body physiology and health preservation known to a limited segment of the population in a culture, transmitted informally as general knowledge, and practiced or applied by anyone in the culture having prior experience.All cultures and societies...
, for instance to excrete excess uric acid
Uric acid
Uric acid is a heterocyclic compound of carbon, nitrogen, oxygen, and hydrogen with the formula C5H4N4O3. It forms ions and salts known as urates and acid urates such as ammonium acid urate. Uric acid is created when the body breaks down purine nucleotides. High blood concentrations of uric acid...
which causes gout
Gout
Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis—a red, tender, hot, swollen joint. The metatarsal-phalangeal joint at the base of the big toe is the most commonly affected . However, it may also present as tophi, kidney stones, or urate...
.
Caution is advised when using boneset, since it contains toxic compounds that can cause liver
Liver
The liver is a vital organ present in vertebrates and some other animals. It has a wide range of functions, including detoxification, protein synthesis, and production of biochemicals necessary for digestion...
damage. Side effects include muscular tremors, weakness, and constipation
Constipation
Constipation refers to bowel movements that are infrequent or hard to pass. Constipation is a common cause of painful defecation...
; overdoses may be deadly.
Selected species
North America
- Eupatorium albumEupatorium albumEupatorium album, or White thoroughwort, is a herbaceous perennial plant in Asteraceae native from the eastern states of the USA. Like other members of the genus Eupatorium, it flowers with large numbers of small white heads. The flower heads have disc florets but no ray florets...
L.– White Thoroughwort - Eupatorium altissimumEupatorium altissimumEupatorium altissimum is a perennial plant whose native range includes much of the eastern United States and Canada. It almost always grows on limestone soils, as does Brickellia eupatorioides, which it is potentially confused with...
L. – Tall Thoroughwort - Eupatorium capillifoliumEupatorium capillifoliumEupatorium capillifolium is a perennial herbaceous plant in the family Asteraceae, native to southeastern North America. It is generally between 50 cm and 2 meters tall with several stems that fork from a substantial base. The stems and base are covered in leaves so dissected that they...
(Lamarck) Small – Dog-Fennel - Eupatorium compositifoliumEupatorium compositifoliumEupatorium compositifolium commonly called Yankeeweed is a herbaceous perennial plant in Asteraceae native from North Carolina to Florida, west to Texas...
Walter – Yankeeweed - Eupatorium godfreyanum Cronquist, apomictic hybrid of Eupatorium rotundifoliumEupatorium rotundifoliumEupatorium rotundifolium, commonly called Roundleaf thoroughwort, is a herbaceous perennial plant in Asteraceae native to the eastern states of the United States in an area from New Jersey to Oklahoma south to Texas to Florida. The stems grow from 40 to over 100 cm tall and are produced from...
and Eupatorium sessilifoliumEupatorium sessilifoliumEupatorium sessilifolium, commonly called Upland Boneset or Sessile-leaved Boneset, is a herbaceous perennial plant in the family Asteraceae. This species is native to eastern North America, where it blooms in late summer with white flowers.... - Eupatorium hyssopifoliumEupatorium hyssopifoliumEupatorium hyssopifolium, also known as Hyssopleaf thoroughwort, is a fall-blooming herbaceous plant native to North America. Like other members of the genus Eupatorium it has inflorescences containing a large number of white flowers with disc florets and no ray florets...
L. – Hyssop-leaved Thoroughwort - Eupatorium lancifoliumEupatorium lancifoliumEupatorium lancifolium commonly called Lanceleaf thoroughwort is a herbaceous perennial plant in Asteraceae native from Alabama, Arkansas, Louisiana and Texas....
(Torrey & A.Gray) Small – Lance-leaved Thoroughwort - Eupatorium leptophyllumEupatorium leptophyllumEupatorium leptophyllum, commonly called False fennel, is a herbaceous perennial plant in Asteraceae native to the southeastern United States. Like other members of the genus Eupatorium, it is about one to two meters tall and has inflorescences containing a large number of white flowers with disc...
DC. – False Fennel - Eupatorium leucolepisEupatorium leucolepisEupatorium leucolepis, commonly called Justiceweed or white-bracted thoroughwort, is a herbaceous perennial plant in Asteraceae native from the eastern coastal states of the USA, from New York to Texas....
(DC.) Torrey & A.Gray – Justiceweed - Eupatorium linearifoliumEupatorium linearifoliumEupatorium linearifolium is a fall-blooming herbaceous plant native to North America. Like other members of the genus Eupatorium it has inflorescences containing a large number of white flowers with disc florets and no ray florets....
Walter – (Eupatorium cuneifolium) - Eupatorium mikanioidesEupatorium mikanioidesEupatorium mikanioides, commonly called Semaphore thoroughwort, is a herbaceous perennial plant in Asteraceae native to Florida. Like other members of the genus Eupatorium, it flowers with large numbers of small white heads, with disc florets but no ray florets. It grows a half meter to one meter...
Chapman – Semaphore Thoroughwort - Eupatorium mohriiEupatorium mohriiEupatorium mohrii, commonly called Mohr's thoroughwort, is a herbaceous perennial plant in Asteraceae native to the southeastern coastal states of the United States, from North Carolina to Florida and Louisiana to Texas. It can also be found in the Caribbean. The stems grow from 30 to over...
Greene – Mohr's Thoroughwort - Eupatorium paludicola E.E.Schill. & LeBlond – Swamp Thoroughwort, until 2007 classified as part of Eupatorium leucolepisEupatorium leucolepisEupatorium leucolepis, commonly called Justiceweed or white-bracted thoroughwort, is a herbaceous perennial plant in Asteraceae native from the eastern coastal states of the USA, from New York to Texas....
- Eupatorium perfoliatumEupatorium perfoliatumEupatorium perfoliatum or Boneset is a common perennial plant native to the Eastern United States and Canada, with a range from Nova Scotia to Florida, as well as from Louisiana and Texas through North Dakota. It is also called "agueweed", "feverwort" or "sweating-plant"...
L. – Common Boneset - Eupatorium petaloideum Britton – Showy White Thoroughwort, often considered to be part of Eupatorium albumEupatorium albumEupatorium album, or White thoroughwort, is a herbaceous perennial plant in Asteraceae native from the eastern states of the USA. Like other members of the genus Eupatorium, it flowers with large numbers of small white heads. The flower heads have disc florets but no ray florets...
- Eupatorium pilosum Walter – Rough Boneset, often considered to be part of Eupatorium rotundifoliumEupatorium rotundifoliumEupatorium rotundifolium, commonly called Roundleaf thoroughwort, is a herbaceous perennial plant in Asteraceae native to the eastern states of the United States in an area from New Jersey to Oklahoma south to Texas to Florida. The stems grow from 40 to over 100 cm tall and are produced from...
- Eupatorium resinosumEupatorium resinosumEupatorium resinosum, or Pine barren thoroughwort, is a herbaceous perennial plant in Asteraceae native to the eastern coastal states of the United States, from North Carolina to New Jersey and Delaware. The stems grow from 40 to over 100 cm tall and are produced from short rhizomes...
Torrey ex DC. – Pine Barren Boneset - Eupatorium rotundifoliumEupatorium rotundifoliumEupatorium rotundifolium, commonly called Roundleaf thoroughwort, is a herbaceous perennial plant in Asteraceae native to the eastern states of the United States in an area from New Jersey to Oklahoma south to Texas to Florida. The stems grow from 40 to over 100 cm tall and are produced from...
L. – Round-leaved Thoroughwort - Eupatorium semiserratumEupatorium semiserratumEupatorium semiserratum, commonly called Smallflower thoroughwort, is a herbaceous perennial plant in Asteraceae native to the Southeastern states of the United States from Florida to South Carolina east to Missouri. The stems grow from 40 to over 100 cm tall and are produced from short...
DC. – Smallflower Thoroughwort - Eupatorium serotinumEupatorium serotinumEupatorium serotinum, also known as late boneset or late thoroughwort, is a fall-blooming herbaceous plant native to North America...
L. – Late Boneset, Late Thoroughwort - Eupatorium sessilifoliumEupatorium sessilifoliumEupatorium sessilifolium, commonly called Upland Boneset or Sessile-leaved Boneset, is a herbaceous perennial plant in the family Asteraceae. This species is native to eastern North America, where it blooms in late summer with white flowers....
L. – Upland Boneset
Asia
- Eupatorium amabileEupatorium amabileEupatorium amabile, commonly called 多花泽兰 duo hua ze lan, is a shrubby plant in Asteraceae native China and Taiwan.Eupatorium amabile is a shrub that grows about 1 m tall, with more or less upright stems and slender branches that are densely glandular-villous near their ends...
Kitam. - Eupatorium benguetenseEupatorium benguetenseEupatorium benguetense is a plant species in Asteraceae....
C.Robinson - Eupatorium camiguinenseEupatorium camiguinenseEupatorium camiguinense is a plant species in Asteraceae....
Merr. - Eupatorium chinenseEupatorium chinenseEupatorium chinense is a plant species in Asteraceae. The exact boundaries of this species have been defined differently by different authors. King and Robinson's 1987 paper defines it broadly, to include Eupatorium japonicum, Eupatorium makinoi, some varieties of Eupatorium fortunei, and other...
L. - Eupatorium formosanumEupatorium formosanumEupatorium formosanum is a plant species in Asteraceae....
Hayata - Eupatorium fortuneiEupatorium fortuneiEupatorium fortunei, in Chinese called 佩兰 pei lan, is a plant species in Asteraceae native from Asia where it is rare in the wild but commonly cultivated. The white to reddish colored flowers and herbage smell like lavender when crushed...
Turcz. – fujibakama, pei lan - Eupatorium japonicumEupatorium japonicumEupatorium japonicum, called in Chinese 白头婆 bai tou po, is a herbaceous plant species in Asteraceae. It is native to China, Japan and Korea.-Description:...
Thunb. (often included in E. chinense) - Eupatorium lindleyanumEupatorium lindleyanumEupatorium lindleyanum, commonly called 林泽兰花 lin ze lan, is a herbaceous perennial plant in Asteraceae native from China, Japan, Korea and Siberia. There are at least two varieties including:* Eupatorium lindleyanum var. lindleyanum...
DC. - Eupatorium luchuenseEupatorium luchuenseEupatorium luchuense is a plant species in Asteraceae....
Nakai - Eupatorium makinoi T.Kawahara & T.Yahara (see E. chinense)
- Eupatorium nodiflorumEupatorium nodiflorumEupatorium nodiflorum is a plant species in Asteraceae....
DC. - Eupatorium quaternumEupatorium quaternumEupatorium quaternum is a plant species in Asteraceae....
DC. - Eupatorium sambucifoliumEupatorium sambucifoliumEupatorium sambucifolium is a plant species in Asteraceae....
Elmer - Eupatorium shimadaiEupatorium shimadaiEupatorium shimadai is a plant species in Asteraceae....
Kitam. - Eupatorium squamosumEupatorium squamosumEupatorium squamosum is a plant species in Asteraceae....
D.Don - Eupatorium tashiroiEupatorium tashiroiEupatorium tashiroi is a plant species in Asteraceae....
Hayata - Eupatorium toppingianumEupatorium toppingianumEupatorium toppingianum is a plant species in Asteraceae. It contains substituted chromenes which have anti-microbial properties....
Elmer - Eupatorium variabileEupatorium variabileEupatorium variabile is a plant species in Asteraceae....
Makino - Eupatorium yakushimaenseEupatorium yakushimaenseEupatorium yakushimaense is a plant species in Asteraceae....
Masam. & Kitam
Moved to other genera
- Eupatorium adamantium GardnerGeorge Gardner (botanist)George Gardner was a Scottish naturalist mainly interested in botany.Gardner's father was a gardener first to to the Earl of Dunmore in Ardentinny, then from 1816 to the Earl of Eglinton at Ardrossan. In 1822, his parents moved to Glasgow where he attended the grammar-school and acquired a...
(moved to KoanophyllonKoanophyllonKoanophyllon is a genus of 115 species of flowering plants in the Asteraceae family. They are perennials and shrubs and are native to South America, Central America, the West Indies, Mexico, with a few species range extending into the United States...
) - Eupatorium amygdalinum (moved to AyapanaAyapanaAyapana is a genus of 14 species of tropical American perennial herbs, which have at times been classified in the genus Eupatorium. The leaves, at least of Ayapana triplinervis, are commonly used medicinally.- Species :A partial list is:...
) - Eupatorium ayapana – aya-pana, Water Hemp (moved to AyapanaAyapanaAyapana is a genus of 14 species of tropical American perennial herbs, which have at times been classified in the genus Eupatorium. The leaves, at least of Ayapana triplinervis, are commonly used medicinally.- Species :A partial list is:...
) - Eupatorium bracteatum Gardn. (moved to StomatanthesStomatanthesStomatanthes is a genus of about 15 species of plants primarily native to South America, but with three species native to Africa.- Classification :...
, S. pernambucensis) - Eupatorium coelestinum – mistflower (moved to ConocliniumConocliniumConoclinium, the mistflowers, is a genus of four species of herbaceous perennial flowering plants, native to North America. They are tall, and have blue to purple or violet flowers ....
) - Eupatorium collinum (moved to ChromolaenaChromolaenaChromolaena is a genus of about 165 species of perennials and shrubs in the aster family, Asteraceae. The name is derived from the Greek words χρῶμα , meaning "color," and λαινα , meaning "cloak." It refers to the colored phyllaries of some species...
collina) - Eupatorium itatiayense Hieron.Georg Hans Emmo Wolfgang HieronymusGeorg Hans Emmo Wolfgang Hieronymus was a European botanist of German extraction. He was born in Silesia and died in Berlin. He began his career as a medical student in Zürich and Bern from 1868 to 1870, but became interested in botany, instead. He then studied at the University of Halle where...
(moved to SymphyopappusSymphyopappusSymphyopappus is a genus of flowering plants in the daisy family, Asteraceae. They are native to Brazil and Peru.Species include:*Symphyopappus apurimacensis*Symphyopappus decemflorus*Symphyopappus itatiayensis...
) - Eupatorium gayanum – asmachilcaAsmachilcaAsmachilca is a bush that grows up to 1 meter in height. It grows in the occidental mountainsides and interandean valleys between 3600-4000 meters in altitude....
(moved to AristeguietiaAristeguietiaAristeguietia is a genus of about 21 species of flowering plant in the tribe Eupatorieae of the Asteraceae family. It is found from Colombia to southern Peru, with one species in Chile.It contains the following species:* Aristeguietia arborea...
gayana) - Eupatorium laevigatum DC. (moved to ChromolaenaChromolaenaChromolaena is a genus of about 165 species of perennials and shrubs in the aster family, Asteraceae. The name is derived from the Greek words χρῶμα , meaning "color," and λαινα , meaning "cloak." It refers to the colored phyllaries of some species...
) - Eupatorium ligustrinum (moved to Ageratina ligustrina)
- Eupatorium maculatum (moved to Eutrochium maculatumEutrochium maculatumEutrochium maculatum is a member of the Asteraceae family. It ranges from Missouri east to the Atlantic Ocean and as far north as Ontario and Quebec south to Kentucky....
) Joe-Pye Weed - Eupatorium maximiliani Schrad. ex DC.A. P. de CandolleAugustin Pyramus de Candolle also spelled Augustin Pyrame de Candolle was a Swiss botanist. René Louiche Desfontaines launched Candolle's botanical career by recommending him at an herbarium...
(moved to ChromolaenaChromolaenaChromolaena is a genus of about 165 species of perennials and shrubs in the aster family, Asteraceae. The name is derived from the Greek words χρῶμα , meaning "color," and λαινα , meaning "cloak." It refers to the colored phyllaries of some species...
) - Eupatorium megalophyllum (moved to Bartlettina sordidaBartlettina sordidaBartlettina sordida, formerly classified in the genus Eupatorium, is an evergreen, erect shrub with reddish-purple branches clothed in slightly rough, dark green leaves with prominent venation and paler undersides....
) - Eupatorium officinale (moved to MikaniaMikaniaMikania is a genus of about 450 species in the family of Asteraceae.The name honors the Czech botanist Johann Christian Mikan. Members of the genus are stem twiners and lianas and are common in the neotropical flora. Mikania originates from South America...
) - Eupatorium pacificum (moved to Ageratina)
- Eupatorium purpureum (moved to Eutrochium purpureum)
- Eupatorium pyrifolium DC.A. P. de CandolleAugustin Pyramus de Candolle also spelled Augustin Pyrame de Candolle was a Swiss botanist. René Louiche Desfontaines launched Candolle's botanical career by recommending him at an herbarium...
(moved to SteyermarkinaSteyermarkinaSteyermarkina is a genus of flowering plants in the daisy family, Asteraceae....
) - Eupatorium rufescens P.W.Lund. ex DC.A. P. de CandolleAugustin Pyramus de Candolle also spelled Augustin Pyrame de Candolle was a Swiss botanist. René Louiche Desfontaines launched Candolle's botanical career by recommending him at an herbarium...
(moved to KauniaKauniaKaunia is a genus of 14 species of South American shrubs or small trees. Its range is centered in Bolivia but it is also found in Argentina, southern Brazil, Peru and Ecuador.- Selected species :...
) - Eupatorium rugosum (moved to Ageratina altissima)
- Eupatorium sordidum (moved to Bartlettina sordidaBartlettina sordidaBartlettina sordida, formerly classified in the genus Eupatorium, is an evergreen, erect shrub with reddish-purple branches clothed in slightly rough, dark green leaves with prominent venation and paler undersides....
) - Eupatorium squalidum DC.A. P. de CandolleAugustin Pyramus de Candolle also spelled Augustin Pyrame de Candolle was a Swiss botanist. René Louiche Desfontaines launched Candolle's botanical career by recommending him at an herbarium...
(moved to ChromolaenaChromolaenaChromolaena is a genus of about 165 species of perennials and shrubs in the aster family, Asteraceae. The name is derived from the Greek words χρῶμα , meaning "color," and λαινα , meaning "cloak." It refers to the colored phyllaries of some species...
) - Eupatorium urticaefolium (moved to Ageratina, synonym of A. altissima)
- Eupatorium vauthierianum DC.A. P. de CandolleAugustin Pyramus de Candolle also spelled Augustin Pyrame de Candolle was a Swiss botanist. René Louiche Desfontaines launched Candolle's botanical career by recommending him at an herbarium...
(moved to HeterocondylusHeterocondylusHeterocondylus is a genus of flowering plants in the daisy family, Asteraceae....
alatus)