''Rottboellia'' (commonly called itch grass) is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...

n, and

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

n plants in the

grass family Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns and ...

.Flora of China Vol. 22 Page 644 筒轴茅属 tong zhou mao shu ''Rottboellia'' Linnaeus f., Suppl. Pl. 114
/ref> The genus was named in honour of Danish botanist

Christen Friis Rottbøll Christen Friis Rottbøll (3 March 1727, at Hørbygård, Denmark – 15 June 1797, in Copenhagen) was a Danish physician and botanist: He was a pupil of Carolus Linnaeus. Early life Rottbøll was born on the Hørbygaard estate at Holbæk, the so ...

(1727-1797). ; Species * ''

Rottboellia cochinchinensis ''Rottboellia cochinchinensis'' is a species of grass known by the common names Itchgrass,Holm, L. G., Plucknett, D. L., Pancho, J. V., & Herberger, J. P. (1977). The world’s worst weeds. The World’s Worst Weeds.Smith, M. C., Reeder, R. H., & ...

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Rottboellia coelorachis ''Rottboellia'' (commonly called itch grass) is a genus of African, Asian, and Australian plants in the grass family. The genus was named in honour of Danish botanist Christen Friis Rottbøll (1727-1797). ; Species * ''Rottboellia cochinchinens ...

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New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st ...

Vanuatu Vanuatu ( or ; ), officially the Republic of Vanuatu (french: link=no, République de Vanuatu; bi, Ripablik blong Vanuatu), is an island country located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is east of no ...

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Rottboellia goalparensis ''Rottboellia'' (commonly called itch grass) is a genus of African, Asian, and Australian plants in the grass family. The genus was named in honour of Danish botanist Christen Friis Rottbøll (1727-1797). ; Species * ''Rottboellia cochinchinens ...

'' Bor -

Assam Assam (; ) is a state in northeastern India, south of the eastern Himalayas along the Brahmaputra and Barak River valleys. Assam covers an area of . The state is bordered by Bhutan and Arunachal Pradesh to the north; Nagaland and Manipur ...

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Rottboellia laevispica ''Rottboellia'' (commonly called itch grass) is a genus of African, Asian, and Australian plants in the grass family. The genus was named in honour of Danish botanist Christen Friis Rottbøll (1727-1797). ; Species * ''Rottboellia cochinchinens ...

'' Keng -

Anhui Anhui , (; formerly romanized as Anhwei) is a landlocked province of the People's Republic of China, part of the East China region. Its provincial capital and largest city is Hefei. The province is located across the basins of the Yangtze River ...

Jiangsu Jiangsu (; ; pinyin: Jiāngsū, Postal romanization, alternatively romanized as Kiangsu or Chiangsu) is an Eastern China, eastern coastal Provinces of the People's Republic of China, province of the China, People's Republic of China. It is o ...

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Rottboellia paradoxa ''Rottboellia'' (commonly called itch grass) is a genus of African, Asian, and Australian plants in the Poaceae, grass family. The genus was named in honour of Danish botanist Christen Friis Rottbøll (1727-1797). ; Species * ''Rottboellia coch ...

'' de Koning & Sosef -

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

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Rottboellia purpurascens ''Rottboellia purpurascens'' is a species of swamp grass native to tropical Western Africa and the Congo Basin The Congo Basin (french: Bassin du Congo) is the sedimentary basin of the Congo River. The Congo Basin is located in Central Africa, ...

'' Robyns - tropical

; Formerly included Numerous species now considered better suited to other genera: ''

Chasmopodium ''Chasmopodium'' is a genus of African plants in the grass family.Coelorachis ''Coelorachis'' is a genus of plants in the grass family, widespread across much of Asia, Africa, Australia and the Americas. ''Coelorhachis'' is treated by some sources as part of the genus '' Mnesithea'', so the following species can general ...

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Elionurus ''Elionurus'' is a genus of Asian, African, Australian, and Neotropical plants in the grass family. ; Species ; formerly included see '' Bothriochloa Lasiurus ''Lasiurus'' is a genus of bats in the family Vespertilionidae Vespertilion ...

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Eremochloa ''Eremochloa'' is a genus of Asian and Australian plants in the grass family. ; SpeciesPohl, R. W. 1994. 171. ''Eremochloa'' Buse. 6: 397. In G. Davidse, M. Sousa Sánchez & A.O. Chater (eds.) Flora Mesoamericana. Universidad Nacional Autónoma ...

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Glyphochloa ''Glyphochloa'' is a genus of India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world ...

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Hainardia ''Hainardia'' is a genus of coastal plants in the grass family, native to the Mediterranean Basin. The only known species is ''Hainardia cylindrica'', known by several common names, including barbgrass, one-glumed hard-grass, and thintail. It ...

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Hemarthria ''Hemarthria'' is a genus of herbaceous plants in the grass family. They occur in the tropical and subtropical Old World, especially in China and Southeast Asia, with some species in Africa, Australia, and southern Europe.

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Henrardia ''Henrardia'' is a genus of Asian plants in the Poaceae, grass family. ; Species * ''Henrardia persica'' (Boiss.) C.E.Hubb. - Kazakhstan, Kyrgyzstan, Turkmenistan, Uzbekistan, Tajikistan, Afghanistan, Iran, Turkey, Pakistan, Syria, Lebanon * ''H ...

'', ''

Heteropholis ''Heteropholis'' is a genus of African and Sri Lankan plants in the grass family. ; Species * '' Heteropholis benoistii'' A.Camus - Madagascar * '' Heteropholis nigrescens'' (Thwaites) C.E.Hubb. - Sri Lanka * '' Heteropholis sulcata'' (Stapf) ...

'', ''

Ischaemum ''Ischaemum'' is a taxonomically one of the most formidable genera in a huge tribe Andropogoneae belonging to the grass family, widespread in tropical and semitropical regions in many countries. Many species are known commonly as murainagrass. ...

'', ''

Lasiurus ''Lasiurus'' is a genus of bats in the family Vespertilionidae Vespertilionidae is a family of microbats, of the order Chiroptera, flying, insect-eating mammals variously described as the common, vesper, or simple nosed bats. The vespertilio ...

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Lolium ''Lolium'' is a genus of tufted grasses in the bluegrass subfamily (Pooideae). It is often called ryegrass, but this term is sometimes used to refer to grasses in other genera. They are characterized by bunch-like growth habits. ''Lolium'' is ...

'', '' Loxodera'', ''

Manisuris ''Manisuris'' is a genus of Indian plants in the grass family. The only known species is ''Manisuris myurus'', native to Tamil Nadu in southern India. Formerly included species Numerous species are now regarded as better suited in other genera, ...

'', ''

Mnesithea ''Mnesithea'', or jointtail grass, is a genus of Asian, Australian, and Pacific Island plants in the grass family. ; Species * '' Mnesithea annua'' (Lazarides) de Koning & Sosef - Western Australia * '' Mnesithea formosa'' (R.Br.) de Koning & ...

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Muhlenbergia ''Muhlenbergia'' is a genus of plants in the grass family. The genus is named in honor of the German-American amateur botanist Gotthilf Heinrich Ernst Muhlenberg (1753-1815). Many of the species are known by the common name muhly. The greatest ...

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Ophiuros ''Ophiuros'' is a genus of Asia, Australian, and East African plants in the grass family. ; species * '' Ophiuros bombaiensis'' Bor - Tamil Nadu, Maharashtra * '' Ophiuros exaltatus'' (L.) Kuntze - Indian Subcontinent, southern China, Sout ...

'', '' Oropetium'', ''

Parapholis ''Parapholis'' is a genus of Eurasian and North African plants in the Poaceae, grass family. Species *''Parapholis filiformis'' (Roth) C.E.Hubb. - from Madeira to Turkey *''Parapholis gracilis'' Bor - Caucasus, Iraq, Iran, Jordan, and Israel. * ...

'', '' Phacelurus'', ''

Pholiurus ''Pholiurus'' is a genus of Eurasian plants in the grass family. The only known species is ''Pholiurus pannonicus'', found in a region stretching from Austria to Kazakhstan.Takhtajan, A.L. (ed.) (2006). Conspectus Florae Caucasi 2: 1-466. Editi ...

'', '' Psilurus'', ''

Ratzeburgia ''Ratzeburgia'' is a genus of plants in the grass family. Species The only known species is ''Ratzeburgia pulcherrima'', found only in Myanmar.Bor, N. L. 1960. Grass. Burma, Ceylon, India & Pakistan i–767. Pergamon Press, Oxford Formerly inc ...

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Rhytachne ''Rhytachne'' is a genus of plants in the grass family. They grow principally in wet savannahs in Africa and the Americas. More specifically, they tend to prefer transitional zones between marshes and drier upland savannahs. In the Americas the g ...

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Schizachyrium ''Schizachyrium'' is a widespread genus of plants in the grass family. The name is derived from the Ancient Greek words (), meaning "to split," and (), meaning "chaff." It refers to either the glume or the toothed lemmas. In the United States ...

'', ''

Spartina ''Spartina'' is a taxon of plants in the grass family, frequently found in coastal salt marshes. Its species are commonly known as cordgrass or cord-grass, and are native to the coasts of the Atlantic Ocean in western and southern Europe, north ...

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Stenotaphrum ''Stenotaphrum'' is a widespread genus of plants in the grass family. The name is derived from the Greek words στενός (''stenos''), meaning "narrow", and τάϕρος (''taphros''), meaning "trench." It refers to cavities in the raceme axi ...

'', '' Thaumastochloa'', '' Urelytrum'' and ''

Xerochloa ''Xerochloa'' is a genus of Australian and Southeast Asian plants in the grass family. ; Species * '' Xerochloa barbata'' R.Br. - Western Australia, Northern Territory, Queensland * '' Xerochloa imberbis'' R.Br. - rice grass - Thailand, Java, W ...

''.

References

External links

Grassbase - The World Online Grass Flora
Panicoideae Poaceae genera Grasses of Africa Grasses of Asia Grasses of Oceania {{Panicoideae-stub