Hymenoxys
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Hymenoxys
''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 the sesquiterpene lactone hymenoxon. ; Species * '' Hymenoxys ambigens'' - Pinaleno Mountain rubberweed - Arizona New Mexico * '' Hymenoxys anthemoides'' - Rio Grande do Sul, Rio de Janeiro, Paraguay, Uruguay, Argentina * '' Hymenoxys biennis'' - Utah * '' Hymenoxys bigelovii'' - Utah Arizona New Mexico * '' Hymenoxys brachyactis'' - East View rubberweed - New Mexico * '' Hymenoxys brandegeei'' - Arizona New Mexico Colorado * '' Hymenoxys cabrerae'' - Argentina * '' Hymenoxys californica'' - California, Baja California * '' Hymenoxys chrysanthemoides'' - San Luis Potosí, Veracruz, Zacatecas, México State, Puebla, Oaxaca, Hidalgo * '' Hymenoxys cooperi'' - Cooper's rubberweed - California Nevada Arizona Utah Idaho Oregon N ...
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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 the sesquiterpene lactone hymenoxon. ; Species * '' Hymenoxys ambigens'' - Pinaleno Mountain rubberweed - Arizona New Mexico * '' Hymenoxys anthemoides'' - Rio Grande do Sul, Rio de Janeiro, Paraguay, Uruguay, Argentina * '' Hymenoxys biennis'' - Utah * '' Hymenoxys bigelovii'' - Utah Arizona New Mexico * '' Hymenoxys brachyactis'' - East View rubberweed - New Mexico * '' Hymenoxys brandegeei'' - Arizona New Mexico Colorado * '' Hymenoxys cabrerae'' - Argentina * '' Hymenoxys californica'' - California, Baja California * '' Hymenoxys chrysanthemoides'' - San Luis Potosí, Veracruz, Zacatecas, México State, Puebla, Oaxaca, Hidalgo * '' Hymenoxys cooperi'' - Cooper's rubberweed - California Nevada Arizona Utah Idaho Oregon New M ...
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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 the sesquiterpene lactone hymenoxon. ; Species * '' Hymenoxys ambigens'' - Pinaleno Mountain rubberweed - Arizona New Mexico * '' Hymenoxys anthemoides'' - Rio Grande do Sul, Rio de Janeiro, Paraguay, Uruguay, Argentina * '' Hymenoxys biennis'' - Utah * '' Hymenoxys bigelovii'' - Utah Arizona New Mexico * '' Hymenoxys brachyactis'' - East View rubberweed - New Mexico * '' Hymenoxys brandegeei'' - Arizona New Mexico Colorado * '' Hymenoxys cabrerae'' - Argentina * '' Hymenoxys californica'' - California, Baja California * ''Hymenoxys chrysanthemoides'' - San Luis Potosí, Veracruz, Zacatecas, México State, Puebla, Oaxaca, Hidalgo * '' Hymenoxys cooperi'' - Cooper's rubberweed - California Nevada Arizona Utah Idaho Oregon New Me ...
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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 a perennial herb up to 150 cm (5 feet) tall. Leaves have very narrow lobes resembling branching threads. One plant can produce an array of 25–400 small yellow flower heads, each head with 3-5 ray flowers and 6–15 disc flowers. ;Varieties *''Hymenoxys ambigens'' var. ''ambigens'' - Mescal, Pinaleño, and Santa Teresa Mountains in Arizona *''Hymenoxys ambigens'' var. ''floribunda'' (A.Gray) W.L.Wagner - Chiricahua, Dos Cabezas, Dragoon, Little Dragoon, and Mule Mountains in Arizona *''Hymenoxys ambigens'' var. ''neomexicana'' W. L. Wagner - Animas + Peloncillo Mountains in New Mexico History In 1882, Sarah Plummer Lemmon discovered the species. Harvard University botanist, Asa Gray Asa Gray (November 18, 1810 – Ja ...
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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 habitats of moderate elevation, such as mountain meadows in the Rocky Mountains, Sierra Nevada, southern Cascades, and other ranges. It has been found from Arizona, New Mexico, and central California north as far as Montana and Oregon. ''H. hoopesii'' is an erect perennial herb growing up to about 1 meter (40 inches) in height, with smooth-edged leaves up to long, oval on the lower stem and lance-shaped toward the top. Blooming from July to September, the inflorescence bears several flower heads on erect peduncles, each lined with a base of hairy, pointed phyllaries. The flower head is up to wide and has a center of 100–325 tiny disc florets fringed with 14–26 orange or yellow ray florets, each ray up to long. The fruit is an ache ...
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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, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th .... References External links anthemoides Flora of South America Plants described in 1803 {{Asteroideae-stub ...
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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 the southwestern United States. ''Hymenoxys brandegeei'' grows at elevations of in the mountains, often above timber line. It is a perennial herb up to tall. One plant generally produces one flower head per stem, up to 10 per plant. Each head has 14–23ray flowers and 150–250 disc flowers. The oldest available name for this plant is ''Actinella grandiflora'' var. ''glabrata'', coined in 1874. In elevating the taxon to species status, Asa Gray Asa Gray (November 18, 1810 – January 30, 1888) is considered the most important American botanist of the 19th century. His ''Darwiniana'' was considered an important explanation of how religion and science were not necessarily mutually excl ... opted to forgo the common but not mandato ...
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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 southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...Kittie Lucille Fenley Parker. 1962. South American Species of ''Hymenoxys'' (Compositae). Leaflets of Western Botany 9: 197–224
descriptions in Latin and English, commentary in English, pages 206–207

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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, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ... in the southwestern United States.SEINet, Southwestern Biodiversity, Arizona chapter
description, photos, distribution map ''Hymenoxys bigelovii'' is a perennial herb up to tall. Leaves have very narrow lobes resembling branching threads. One plant will generally produce 1-5 flower heads, each head with 13–15 ray flowers and 100–250 disc flowers.
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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, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ... in the southwestern United States. ''Hymenoxys brachyactis'' grows at elevations of 2000–2500 meters (6700–8300 feet) in open areas or the edges of pine forests. It is a biennial or perennial herb up to 60 cm (2 feet) tall. One plant can produce an array with as many as 250 small yellow flower heads, each head with 8-9 ray flowers and 25–60 disc flowers. References External links brachyactis Flora of New Mexico Plants described in 1913 {{Asteroideae-stub ...
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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. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ... in the western United States.Cockerell, Theodore Dru Alison. 1904. Bulletin of the Torrey Botanical Club 31(9): 482
''Hymenoxys canescens'' subsp. ''biennis''


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Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica. The earliest recorded human prese ...
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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 its capital city is San Luis Potosí City. Located in Central Mexico, San Luis Potosí is bordered by seven other Mexican states: Nuevo León to the north; Tamaulipas to the north-east; Veracruz to the east; Hidalgo, Querétaro and Guanajuato to the south; and Zacatecas to north-west. In addition to the capital city, other major cities in the state include Ciudad Valles, Matehuala, Rioverde, and Tamazunchale. History In pre-Columbian times, the territory now occupied by the state of San Luis Potosí contained parts of the cultural areas of Mesoamerica and Aridoamerica. Its northern and western-central areas were inhabited by the Otomi and Chichimeca tribes. These indigenous groups were nomadic hunter-gatherers. Although many indigenou ...
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