''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 Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...

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

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

and

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

. 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 (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase ...

e of some

Lepidoptera Lepidoptera ( ) or lepidopterans is an order (biology), order of winged insects which includes butterflies and moths. About 180,000 species of the Lepidoptera have been described, representing 10% of the total described species of living organ ...

species including '' Schinia bicuspida'' (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'' (Greene) Greene - alkali goldenbush, alkali jimmyweed -

Baja California Baja California, officially the Free and Sovereign State of Baja California, is a state in Mexico. It is the northwesternmost of the 32 federal entities of Mexico. Before becoming a state in 1952, the area was known as the North Territory of B ...

Sonora Sonora (), officially Estado Libre y Soberano de 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 divided into Municipalities of Sonora, 72 ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

Arizona Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...

Nevada Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...

Utah Utah is a landlocked state in the Mountain states, Mountain West subregion of the Western United States. It is one of the Four Corners states, sharing a border with Arizona, Colorado, and New Mexico. It also borders Wyoming to the northea ...

* '' Isocoma arguta'' Greene - Carquinez goldenbush - Solano County in

* '' Isocoma azteca'' G.L.Nesom - Aztec goldenbush -

New Mexico New Mexico is a state in the Southwestern United States, Southwestern region of the United States. It is one of the Mountain States of the southern Rocky Mountains, sharing the Four Corners region with Utah, Colorado, and Arizona. It also ...

* '' Isocoma coronopifolia'' (Gray) Greene - common goldenbush, goldenweed - southern

Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...

Coahuila Coahuila, formally Coahuila de Zaragoza, officially the Free and Sovereign State of Coahuila de Zaragoza, is one of the 31 states of Mexico. The largest city and State Capital is the city of Saltillo; the second largest is Torreón and the thi ...

Nuevo León Nuevo León, officially the Free and Sovereign State of Nuevo León, is a Administrative divisions of Mexico, state in northeastern Mexico. The state borders the Mexican states of Tamaulipas, Coahuila, Zacatecas, and San Luis Potosí, San Luis ...

Tamaulipas Tamaulipas, officially the Free and Sovereign State of Tamaulipas, is a state in Mexico; one of the 31 states which, along with Mexico City, comprise the 32 federal entities of Mexico. It is divided into 43 municipalities. It is located in nor ...

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

* '' Isocoma felgeri'' G.L.Nesom - Sonora * '' Isocoma gypsophila'' B.L.Turner -

Zacatecas Zacatecas, officially the Free and Sovereign State of Zacatecas, is one of the Political divisions of Mexico, 31 states of Mexico. It is divided into Municipalities of Zacatecas, 58 municipalities and its capital city is Zacatecas City, Zacatec ...

* '' Isocoma hartwegii'' (A.Gray) Greene -

San Luis Potosí San Luis Potosí, officially the Free and Sovereign State of San Luis Potosí, is one of the 32 states which compose the Federal Entities of Mexico. It is divided in 59 municipalities and is named after its capital city, San Luis Potosí. It ...

Guanajuato Guanajuato, officially the Free and Sovereign State of Guanajuato, is one of the 32 states that make up the Political divisions of Mexico, Federal Entities of Mexico. It is divided into Municipalities of Guanajuato, 46 municipalities and its cap ...

* '' Isocoma humilis'' G.L.Nesom - Zion goldenbush -

( Kane +

Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...

Cos) * ''

Isocoma menziesii ''Isocoma menziesii'' is a species of flowering plant in the family Asteraceae, known by the common name Menzies' goldenbush. It is native to California, Baja California, and Baja California Sur, where it grows in coastal and inland habitat suc ...

'' (Hook. & Arn.) G.L.Nesom - Menzies' goldenbush -

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

Chihuahua * '' Isocoma rusbyi'' Greene - Rusby's goldenbush -

Colorado Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...

* '' Isocoma tehuacana'' G.L.Nesom -

Puebla Puebla, officially the Free and Sovereign State of Puebla, is one of the 31 states that, along with Mexico City, comprise the Federal Entities of Mexico. It is divided into 217 municipalities and its capital is Puebla City. Part of east-centr ...

* '' Isocoma tenuisecta'' Greene - burrow goldenweed, burroweed -

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

from

Oaxaca Oaxaca, officially the Free and Sovereign State of Oaxaca, is one of the 32 states that compose the political divisions of Mexico, Federative Entities of the Mexico, United Mexican States. It is divided into municipalities of Oaxaca, 570 munici ...

References

External links

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

Integrated Taxonomic Information System

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