''Pterocaulon'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the

sunflower family Asteraceae () is a large family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the order Asterales. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger fam ...

, native to

North North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating Direction (geometry), direction or geography. Etymology T ...

and

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

and to

Australasia Australasia is a subregion of Oceania, comprising Australia, New Zealand (overlapping with Polynesia), and sometimes including New Guinea and surrounding islands (overlapping with Melanesia). The term is used in a number of different context ...

. Blackroot is a common name for species native to North America. The plants are perennial herbs, frequently densely covered with woolly hairs. The generic name means "winged stem," referring to the

decurrent ''Decurrent'' (sometimes decurring) is a term used in botany and mycology to describe plant or fungal parts that extend downward. In botany, the term is most often applied to leaf blades that partly wrap or have wings around the stem or petio ...

leaf bases that give the appearance of wings running down the sides of the stems. ; SpeciesFlann, C (ed) 2009+ Global Compositae Checklist
Biota of North America Program 2013 county distribution maps
/ref> * '' Pterocaulon alopecuroides'' - South America, Puerto Rico, Virgin Islands * ''

Pterocaulon angustifolium ''Pterocaulon'' is a genus of flowering plants in the Asteraceae, sunflower family, native to North America, North and South America and to Australasia. Blackroot is a common name for species native to North America. The plants are perennial he ...

'' - Brazil, Argentina, Paraguay, Uruguay * '' Pterocaulon balansae'' - Brazil, Argentina, Paraguay, Uruguay * '' Pterocaulon cordobense'' - Brazil, Argentina, Paraguay, Uruguay * '' Pterocaulon globuliflorus'' - Western Australia, Northern Territory * '' Pterocaulon lanatum'' - Brazil, Bolivia, Paraguay,

Salta Salta () is the capital and largest city in the Provinces of Argentina, Argentine province of Salta Province, the same name. With a population of 618,375 according to the 2010 census, it is also the List of cities in Argentina, 7th most-populous ...

* '' Pterocaulon lorentzii'' - Brazil, Argentina, Paraguay, Uruguay, Bolivia * '' Pterocaulon niveum'' - Western Australia, Northern Territory * '' Pterocaulon polypterum'' - Brazil, Argentina, Uruguay * '' Pterocaulon polystachyum'' - Brazil, Argentina, Paraguay, Uruguay * '' Pterocaulon purpurascens'' -

Mato Grosso Mato Grosso ( – ) is one of the states of Brazil, the List of Brazilian states by area, third largest by area, located in the Central-West Region, Brazil, Central-West region. The state has 1.66% of the Brazilian population and is responsible ...

, Argentina, Paraguay, Bolivia * '' Pterocaulon pycnostachyum '' - United States ( AL GA FL SC NC) * '' Pterocaulon redolens'' -

Indochina Mainland Southeast Asia (historically known as Indochina and the Indochinese Peninsula) is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to th ...

Hainan Hainan is an island provinces of China, province and the southernmost province of China. It consists of the eponymous Hainan Island and various smaller islands in the South China Sea under the province's administration. The name literally mean ...

Orissa Odisha (), formerly Orissa ( the official name until 2011), is a state located in Eastern India. It is the eighth-largest state by area, and the eleventh-largest by population, with over 41 million inhabitants. The state also has the thir ...

Philippines The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

Maluku Maluku may refer to: Places * Maluku Islands, an archipelago that is part of Indonesia ** List of the Maluku Islands * Maluku (province), a province of Indonesia comprising the central and southern parts of the archipelago * North Maluku, a provin ...

New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is ...

, eastern Australia * '' Pterocaulon rugosum'' - Brazil, Argentina, Paraguay * '' Pterocaulon serrulatum'' - Western Australia, Northern Territory, South Australia * ''

Pterocaulon sphacelatum ''Pterocaulon sphacelatum'', commonly known as apple bush or fruit-salad plant, is a species of flowering plant in the family Asteraceae. It is an upright shrub with mostly pink to purple flowers and is endemic to Australia. Description ''Pter ...

'' - Australia * '' Pterocaulon sphaeranthoides'' - Western Australia, Northern Territory, Queensland * '' Pterocaulon spicatum'' - South America * '' Pterocaulon verbascifolium'' - Western Australia, Northern Territory, Queensland * '' Pterocaulon virgatum'' - Central +

West Indies The West Indies is an island subregion of the Americas, surrounded by the Atlantic Ocean, North Atlantic Ocean and the Caribbean Sea, which comprises 13 independent island country, island countries and 19 dependent territory, dependencies in thr ...

, United States ( TX LA)

References

Asteraceae genera Taxa named by Stephen Elliott {{Inuleae-stub