''Hymenoxys'' (rubberweed or bitterweed) is a genus of plants in the sunflower family, native to North and South America.Tropicos, ''Hymenoxys'' Cass.
/ref> It was named by Alexandre Henri Gabriel de Cassini in 1828. Plants of this genus are toxic to sheep due to the presence of the sesquiterpene lactone hymenoxon. ; SpeciesThe Plant List search for Hymenoxys
/ref>The Plant List, search for ''Hymenoxys''
/ref> * ''

Hymenoxys ambigens ''Hymenoxys ambigens'' is a species of flowering plant in the daisy family known by the common name Pinaleño Mountains rubberweed. It is native to the states of Arizona and New Mexico in the southwestern United States. ''Hymenoxys ambigens'' is ...

'' - Pinaleno Mountain rubberweed - Arizona New Mexico * ''

Hymenoxys anthemoides ''Hymenoxys anthemoides'', the South American rubberweed, is a South American species of flowering plants in the daisy family. It is native to Bolivia, Paraguay, Uruguay, and Argentina Argentina (), officially the Argentine Republic ( es ...

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Rio Grande do Sul Rio Grande do Sul (, , ; "Great River of the South") is a Federative units of Brazil, state in the South Region, Brazil, southern region of Brazil. It is the Federative_units_of_Brazil#List, fifth-most-populous state and the List of Brazilian st ...

, Rio de Janeiro, Paraguay, Uruguay, Argentina * ''

Hymenoxys biennis ''Hymenoxys biennis'' is a North American species of flowering plant in the daisy family. It is native to the state of Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. s ...

'' - Utah * ''

Hymenoxys bigelovii ''Hymenoxys bigelovii'' is a species of flowering plant in the daisy family known by the common name Bigelow's rubberweed . It is native to the states of Arizona, Utah, and New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, ...

'' - Utah Arizona New Mexico * ''

Hymenoxys brachyactis ''Hymenoxys brachyactis'' is a species of flowering plant in the daisy family known by the common names east view rubberweed and tall bitterweed. It is native to the state of New Mexico ) , population_demonym = New Mexican ( es, Neomexicano ...

'' - East View rubberweed - New Mexico * ''

Hymenoxys brandegeei ''Hymenoxys brandegeei'' is a species of flowering plant in the daisy family known by the common names Brandegee's four-nerve daisy, Brandegee's rubberweed or western bitterweed. It is native to the states of Arizona, Colorado, and New Mexico in ...

'' - Arizona New Mexico Colorado * ''

Hymenoxys cabrerae ''Hymenoxys cabrerae'' is a South American species of flowering plant in the daisy family. It has only been found in Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the sou ...

'' - Argentina * ''

Hymenoxys californica ''Hymenoxys'' (rubberweed or bitterweed) is a genus of plants in the sunflower family, native to North and South America. It was named by Alexandre Henri Gabriel de Cassini in 1828. Plants of this genus are toxic to sheep due to the presence of ...

'' - California, Baja California * ''

Hymenoxys chrysanthemoides ''Hymenoxys'' (rubberweed or bitterweed) is a genus of plants in the sunflower family, native to North and South America. It was named by Alexandre Henri Gabriel de Cassini in 1828. Plants of this genus are toxic to sheep due to the presence of ...

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San Luis Potosí San Luis Potosí (), officially the Free and Sovereign State of San Luis Potosí ( es, Estado Libre y Soberano de San Luis Potosí), is one of the 32 states which compose the Federal Entities of Mexico. It is divided in 58 municipalities and i ...

, Veracruz, Zacatecas,

México State The State of Mexico ( es, Estado de México; ), officially just Mexico ( es, México), is one of the 32 federal entities of the United Mexican States. Commonly known as Edomex (from ) to distinguish it from the name of the whole country, it is ...

Puebla Puebla ( en, colony, settlement), officially Free and Sovereign State of Puebla ( es, Estado Libre y Soberano de Puebla), is one of the 32 states which comprise the Federal Entities of Mexico. It is divided into 217 municipalities and its cap ...

, Oaxaca, Hidalgo * ''

Hymenoxys cooperi ''Hymenoxys cooperi'' is a species of flowering plant in the daisy family known by the common name Cooper's rubberweed. It is native to the southwestern United States and Great Basin The Great Basin is the largest area of contiguous endorheic ...

'' - Cooper's rubberweed - California Nevada Arizona Utah Idaho Oregon New Mexico * ''

Hymenoxys grandiflora ''Hymenoxys grandiflora'' is a North American species of flowering plant in the daisy family known by the common names graylocks four-nerve daisy, graylocks rubberweed, or old man of the mountain. It is native to high elevations in the Rocky Moun ...

'' - New Mexico Colorado Wyoming Montana Utah Idaho * ''

Hymenoxys helenioides ''Hymenoxys helenioides'' is a North American species of flowering plant in the daisy family The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order A ...

'' - intermountain rubberweed - Arizona New Mexico Colorado Utah * ''

Hymenoxys hoopesii ''Hymenoxys hoopesii'' (formerly ''Dugaldia hoopesii'') is a species of flowering plant in the daisy family known by the common names owl's claws, orange sneezeweed, and yerba del lobo. It is native to the western United States, where it grows in ...

'' - owl claws - New Mexico Colorado Wyoming Montana Utah Idaho Oregon Nevada California * ''

Hymenoxys insignis ''Hymenoxys insignis'' is a Mexican species of flowering plant in the daisy family. It has been found in Coahuila, Nuevo León, and Chihuahua Chihuahua may refer to: Places *Chihuahua (state), a Mexican state **Chihuahua (dog), a breed of dog na ...

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Nuevo León Nuevo León () is a state in the northeast region of Mexico. The state was named after the New Kingdom of León, an administrative territory from the Viceroyalty of New Spain, itself was named after the historic Spanish Kingdom of León. With a ...

Coahuila Coahuila (), formally Coahuila de Zaragoza (), officially the Free and Sovereign State of Coahuila de Zaragoza ( es, Estado Libre y Soberano de Coahuila de Zaragoza), is one of the 32 states of Mexico. Coahuila borders the Mexican states of N ...

Chihuahua Chihuahua may refer to: Places *Chihuahua (state), a Mexican state **Chihuahua (dog), a breed of dog named after the state **Chihuahua cheese, a type of cheese originating in the state **Chihuahua City, the capital city of the state **Chihuahua Mun ...

* ''

Hymenoxys jamesii ''Hymenoxys jamesii'' is a North American species of flowering plant in the daisy family known by the common name James's rubberweed. It has been found only on the Mogollon Plateau of Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ...

'' - Arizona * ''

Hymenoxys lemmonii ''Hymenoxys lemmonii'' is a species of flowering plant in the daisy family known by the common names Lemmon's rubberweed, Lemmon's bitterweed, and alkali hymenoxys. It is native to the western United States in and around the Great Basin The Gr ...

'' - Lemmon's rubberweed - Arizona Oregon Nevada California * ''

Hymenoxys multiflora ''Hymenoxys'' (rubberweed or bitterweed) is a genus of plants in the sunflower family, native to North and South America. It was named by Alexandre Henri Gabriel de Cassini in 1828. Plants of this genus are toxic to sheep due to the presenc ...

'' - Texas New Mexico * ''

Hymenoxys mutica ''Hymenoxys'' (rubberweed or bitterweed) is a genus of plants in the sunflower family, native to North and South America. It was named by Alexandre Henri Gabriel de Cassini in 1828. Plants of this genus are toxic to sheep due to the presence o ...

'' - California * ''

Hymenoxys odorata ''Hymenoxys odorata'' is a species of flowering plant in the daisy family known by the common names bitter rubberweed and western bitterweed. It is native to the southwestern and south-central United States from southern California to Texas north ...

'' - bitter rubberweed - California Arizona New Mexico Texas

Oklahoma Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...

Colorado Kansas Maine South Carolina Alabama, Baja California,

Baja California Sur Baja California Sur (; 'South Lower California'), officially the Free and Sovereign State of Baja California Sur ( es, Estado Libre y Soberano de Baja California Sur), is the least populated state and the 31st admitted state of the 32 federal ent ...

Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is d ...

Durango Durango (), officially named Estado Libre y Soberano de Durango ( en, Free and Sovereign State of Durango; Tepehuán: ''Korian''; Nahuatl: ''Tepēhuahcān''), is one of the 31 states which make up the 32 Federal Entities of Mexico, situated in ...

, Tamaulipas * ''

Hymenoxys quinquesquamata ''Hymenoxys quinquesquamata'' is a North American species of flowering plant in the family Asteraceae known by the common names rincon rubberweed or rincon bitterweed. It has been found only in the states of Arizona and New Mexico in the southwes ...

'' - rincon rubberweed - Arizona New Mexico * '' Hymenoxys richardsonii'' - pingue rubberweed, Colorado rubberweed - Alberta, Saskatchewan, Montana Idaho Wyoming Utah Colorado New Mexico Arizona Texas Nebraska North Dakota Nevada * ''

Hymenoxys robusta ''Hymenoxys robusta'' is a South American species of flowering plant in the daisy family. It has been found primarily in Bolivia with a few populations in nearby Peru and Argentina. ''Hymenoxys robusta'' is a foul-smelling perennial with a bra ...

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Bolivia , image_flag = Bandera de Bolivia (Estado).svg , flag_alt = Horizontal tricolor (red, yellow, and green from top to bottom) with the coat of arms of Bolivia in the center , flag_alt2 = 7 × 7 square p ...

, Argentina, Peru * '' Hymenoxys rusbyi'' - Arizona New Mexico * ''

Hymenoxys subintegra ''Hymenoxys subintegra'' is a North American species of flowering plant in the daisy family known by the common name Arizona rubberweed. It has been found only in the states of Arizona and Utah in the southwestern United States. Many of the pop ...

'' - Arizona rubberweed - Arizona Utah * ''

Hymenoxys texana ''Hymenoxys texana'' is a rare species of flowering plant in the Asteraceae, aster family known by the common names prairie dawn, Texas prairie dawn-flower, and Texas bitterweed. It is Endemism, endemic to Texas, where it is known only from the g ...

'' - prairie dawn - Texas * ''

Hymenoxys tweediei ''Hymenoxys tweediei'' is a South American species of flowering plant in the daisy family. It has been found mostly in Uruguay with a few populations in northeastern Argentina ( Entre Rios Province) and southern Brazil (Rio Grande do Sul Ri ...

'' - Argentina * ''

Hymenoxys vaseyi ''Hymenoxys vaseyi'' is a North American species of flowering plant in the daisy family The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Astera ...

'' - Texas New Mexico ; formerly included

References

External links

Jepson Manual Treatment, University of California

United States Department of Agriculture Plants Profile
Asteraceae genera {{Asteroideae-stub