''Isocoma'', commonly called jimmyweed or goldenweed,Flora of North America Vol. 20 Page 439 Jimmyweed, goldenweed, Isocoma Nuttall, Trans. Amer. Philos. Soc., n. s. 7: 320. 1840.
/ref> is a genus of North American semi-woody shrubs in the family

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 w ...

. It is found in the semi-arid areas of Southwestern

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

and

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

. The name of this genus is derived from the Greek for "equal hair" referring to the pappus on the seed. ''Isocoma'' species are used as food plants by the

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. ...

e of some Lepidoptera species including ''

Schinia bicuspida ''Schinia bicuspida'' is a moth of the family Noctuidae. It is found in North America, including Arkansas, Arizona, Colorado, Kansas, Nebraska, New Mexico, Oklahoma, Texas and Utah. The wingspan is about 23 mm. The larvae feed on ''Iso ...

'' (recorded on ''I. drummondii''), '' Schinia erosa'' (feeds exclusively on ''I. acradenia'') and '' Schinia tertia'' (recorded on ''I. pluriflora''). ; SpeciesThe Plant List search for ''Isocoma''
/ref>Nesom, G.L. 1991. Taxonomy of ''Isocoma'' (Compositae: Astereae). Phytologia 70(2): 69–114
includes descriptions and distribution maps for 15 species * ''

Isocoma acradenia ''Isocoma acradenia'' is a North American species of flowering plant in the family Asteraceae known by the common name alkali goldenbush. It is native to the Southwestern United States (California, Nevada, Utah, Arizona) and northwestern Mexico ...

'' (Greene) Greene - alkali goldenbush, alkali jimmyweed -

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

, Sonora,

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...

Nevada Nevada ( ; ) is a state in the Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the 7th-most extensive, ...

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 ...

* ''

Isocoma arguta ''Isocoma arguta'' is a rare species of flowering plant in the family Asteraceae known by the common name Carquinez goldenbush. It has been found only in Solano and Contra Costa Counties in California, where it grows in the Sacramento-San Joaq ...

'' Greene - Carquinez goldenbush -

Solano County Solano County () is a county located in the U.S. state of California. As of the 2020 census, the population was 453,491. The county seat is Fairfield. Solano County comprises the Vallejo–Fairfield, CA Metropolitan Statistical Area, which i ...

* ''

Isocoma azteca ''Isocoma azteca'', common names Apache jimmyweed or Aztec goldenbush, is a plant species native to Arizona and New Mexico. It grows on sandy to clay soils, often with ''Atriplex'' sp., at elevations of . ''Isocoma azteca'' is a shrub or subshr ...

'' G.L.Nesom - Aztec goldenbush -

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, Ke ...

* ''

Isocoma coronopifolia ''Isocoma coronopifolia'', the common goldenbush, is a North American plant species in the family Asteraceae. It has been found on both sides of the Río Grande, in Tamaulipas, Coahuila, Nuevo León, Chihuahua, and southern Texas Texas ( ...

'' (Gray) Greene - common goldenbush, goldenweed - southern

Texas Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by ...

, Coahuila, Nuevo León,

Tamaulipas Tamaulipas (), officially the Free and Sovereign State of Tamaulipas ( es, Estado Libre y Soberano de Tamaulipas), is a state in the northeast region of Mexico; one of the 31 states which, along with Mexico City, comprise the 32 Federal Entiti ...

* ''

Isocoma drummondii ''Isocoma drummondii'', the Drummond's goldenbush, is a North American plant species in the family Asteraceae. It has been found on both sides of the Río Grande, in Tamaulipas and in southern Texas Texas (, ; Spanish: ''Texas'', ''Teja ...

'' (Torr. & Gray) Greene - Drummond's goldenbush, Drummond's jimmyweed - southern

* ''

Isocoma felgeri ''Isocoma felgeri'' is a rare Mexican plant species in the family Asteraceae. It has been found in the State of Sonora Sonora (), officially Estado Libre y Soberano de Sonora ( en, Free and Sovereign State of Sonora), is one of the 31 states ...

'' G.L.Nesom - Sonora * ''

Isocoma gypsophila ''Isocoma gypsophila'' is a Mexican plant species in the family Asteraceae. It has been found in the States of Zacatecas and Nuevo León Nuevo León () is a state in the northeast region of Mexico. The state was named after the New Kingdom ...

'' B.L.Turner -

Zacatecas , image_map = Zacatecas in Mexico (location map scheme).svg , map_caption = State of Zacatecas within Mexico , coordinates = , coor_pinpoint = , coordinates_footnotes = , subdivision_type ...

, Nuevo León * ''

Isocoma hartwegii ''Isocoma hartwegii'' is a Mexican plant species in the family Asteraceae. It has been found in the states of Jalisco, Zacatecas, Aguascalientes, Hidalgo, Guanajuato, and San Luis Potosí San Luis Potosí (), officially the Free and Sovereig ...

'' (A.Gray) Greene - San Luis Potosí,

, Guanajuato * ''

Isocoma humilis ''Isocoma humilis'', common names Zion goldenbush or Zion jimmyweed, is a rare North American plant species in the family Asteraceae. It has been found only in southern Utah Utah ( , ) is a state in the Mountain West subregion of the W ...

'' G.L.Nesom - Zion goldenbush -

( Kane +

Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...

Cos) * '' Isocoma menziesii'' (Hook. & Arn.) G.L.Nesom - Menzies' goldenbush -

* ''

Isocoma pluriflora ''Isocoma pluriflora'', commonly called southern jimmyweed or southern goldenbush, is a North American species of flowering perennial herbs in the family Asteraceae. It grows in northern Mexico (Baja California Sur, Sonora, Chihuahua, Coahuila, ...

'' (Torr. & Gray) Greene - rayless goldenrod, southern goldenbush, southern jimmyweed -

Chihuahua * ''

Isocoma rusbyi ''Isocoma rusbyi'', the Rusby's goldenbush, is a North American species of plants in the family Asteraceae. It has been found in the States of Arizona, Utah, New Mexico, and Colorado in the southwestern United States. Some of the populations lie ...

'' Greene - Rusby's goldenbush -

Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...

* '' Isocoma tehuacana'' G.L.Nesom - Puebla * '' Isocoma tenuisecta'' Greene - burrow goldenweed, burroweed -

* '' Isocoma tomentosa'' G.L.Nesom - Chihuahua * '' Isocoma veneta'' (Kunth) Greene - jimmyweed -

from Coahuila to

Oaxaca Oaxaca ( , also , , from nci, Huāxyacac ), officially the Free and Sovereign State of Oaxaca ( es, Estado Libre y Soberano de Oaxaca), is one of the 32 states that compose the political divisions of Mexico, Federative Entities of Mexico. It is ...

References

External links

* *
USDA Plants Profile for ''Isocoma'' (goldenbush)

Integrated Taxonomic Information System

Jepson Manual
Asteraceae genera Taxa named by Thomas Nuttall {{Astereae-stub