''Pseudognaphalium stramineum'', also known as cotton-batting-plant, is an annual or biennial species of plant in the sunflower family. It is known for being covered in dense, loose hairs on its leaves and stems.

Taxonomy

''Pseudognaphalium stramineum'' was scientifically described by

Carl Sigismund Kunth Carl Sigismund Kunth (18 June 1788 – 22 March 1850) was a German botanist. He was also known as Karl Sigismund Kunth or anglicized as Charles Sigismund Kunth. He was one of the early systematic botanists who focused on studying the plants of th ...

in 1818 with the name ''Gnaphalium stramineum''. In 1991 it was moved to the genus ''

Pseudognaphalium ''Pseudognaphalium'' is a genus of flowering plants in the family Asteraceae. Members of the genus are commonly known as cudweeds or rabbit tobacco (''Pseudognaphalium obtusifolium, P. obtusifolium'' is the original species with that name). They ...

'' by Arne A. Anderberg.

Range

''Pseudognaphalium stramineum'' grows throughout western North America from British Columbia to

Central America Central America is a subregion of North America. Its political boundaries are defined as bordering Mexico to the north, Colombia to the southeast, the Caribbean to the east, and the Pacific Ocean to the southwest. Central America is usually ...

. In Canada it only grows in British Columbia. In the United States it grows in every state from the Pacific coast to the Rocky Mountains and is particularly widespread in Arizona, California, Oregon, and Washington. East of the Rockies it is found in some of Texas, two counties in Oklahoma, and is reported from Nebraska without any location information. On the east coast it grows in just New York, Virginia, North Carolina, and South Carolina. In Mexico it is also quite widespread. In the northwest it grow in all four states,

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 ...

Baja California Sur Baja California Sur, officially the Free and Sovereign State of Baja California Sur, is a state in Mexico. It is the 31st and last state to be admitted, in 1974. It is also the second least populated Mexican state and the ninth-largest state by ...

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 ...

, and

Sinaloa Sinaloa (), officially the (), is one of the 31 states which, along with Mexico City, compose the Federal Entities of Mexico. It is divided into 18 municipalities, and its capital city is Culiacán Rosales. It is located in northwest Mexic ...

. In the northeast it grows in ten of the eleven states, only being absent from

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 ...

. In central Mexico it grows in the

State of Mexico The State of Mexico, officially just Mexico, is one of the 32 federal entities of the United Mexican States. Colloquially known as Edomex (from , the abbreviation of , and ), to distinguish it from the name of the whole country, it is the mo ...

Mexico City Mexico City is the capital city, capital and List of cities in Mexico, largest city of Mexico, as well as the List of North American cities by population, most populous city in North America. It is one of the most important cultural and finan ...

Morelos Morelos, officially the Free and Sovereign State of Morelos, is a landlocked state located in south-central Mexico. It is one of the 32 states which comprise the Political divisions of Mexico, Federal Entities of Mexico. It is divided into Mun ...

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 ...

, and

Tlaxcala Tlaxcala, officially the Free and Sovereign State of Tlaxcala, is one of the 32 federal entities that comprise the Political divisions of Mexico, Federal Entities of Mexico. It is divided into Municipalities of Tlaxcala, 60 municipalities and t ...

. In the southwest it remains common, only being absent from

Colima Colima, officially the Free and Sovereign State of Colima, is among the 31 states that make up the 32 Federal Entities of Mexico. It shares its name with its capital and main city, Colima. Colima is a small state of western Mexico on the cen ...

. It also grows in the state of

Veracruz Veracruz, formally Veracruz de Ignacio de la Llave, officially the Free and Sovereign State of Veracruz de Ignacio de la Llave, is one of the 31 states which, along with Mexico City, comprise the 32 Political divisions of Mexico, Federal Entit ...

on the Gulf of Mexico. To the southeast it becomes less common, being found in just

Chiapas Chiapas, officially the Free and Sovereign State of Chiapas, is one of the states that make up the Political divisions of Mexico, 32 federal entities of Mexico. It comprises Municipalities of Chiapas, 124 municipalities and its capital and large ...

. In Central America it is found in three countries,

Costa Rica Costa Rica, officially the Republic of Costa Rica, is a country in Central America. It borders Nicaragua to the north, the Caribbean Sea to the northeast, Panama to the southeast, and the Pacific Ocean to the southwest, as well as Maritime bo ...

Guatemala Guatemala, officially the Republic of Guatemala, is a country in Central America. It is bordered to the north and west by Mexico, to the northeast by Belize, to the east by Honduras, and to the southeast by El Salvador. It is hydrologically b ...

, and

Honduras Honduras, officially the Republic of Honduras, is a country in Central America. It is bordered to the west by Guatemala, to the southwest by El Salvador, to the southeast by Nicaragua, to the south by the Pacific Ocean at the Gulf of Fonseca, ...

. It is also found as an introduced plant in the United Kingdom.

References

{{Taxonbar, from=Q15599582 Flora of Central Mexico Flora of Northeastern Mexico Flora of Northwestern Mexico Flora of Southwestern Mexico Flora of the Northwestern United States Flora of the Southwestern United States Flora of the South-Central United States Flora of British Columbia Flora of Chiapas Flora of Nebraska Flora of New York (state) Flora of North Carolina Flora of Oklahoma Flora of South Carolina Flora of Veracruz Flora of Virginia stramineum