''Rottboellia'' (commonly called itch grass) 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 ...

Africa Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...

Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...

n, and

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

n plants in the

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

.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 ...

(1727-1797).

Species

24 species are accepted. * '' Rottboellia afraurita'' – tropical Africa * '' Rottboellia aurita'' – southeastern Mexico, Central America, northern South America, and central Brazil and Bolivia to northeastern Argentina * '' Rottboellia balansae'' – Bolivia, west-central Brazil, Paraguay, and northeastern Argentina * '' Rottboellia campestris'' – central and southeastern United States * '' Rottboellia cancellata'' – Bangka, Peninsular Malaysia, Thailand, and Vietnam * '' Rottboellia clarkei'' – India and Myanmar * ''

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., & ...

'' (Lour.) Clayton -

* '' Rottboellia coelorachis'' G.Forst. -

New Caledonia New Caledonia ( ; ) is a group of islands in the southwest Pacific Ocean, southwest of Vanuatu and east of Australia. Located from Metropolitan France, it forms a Overseas France#Sui generis collectivity, ''sui generis'' collectivity of t ...

Vanuatu Vanuatu ( or ; ), officially the Republic of Vanuatu (; ), is an island country in Melanesia located in the South Pacific Ocean. The archipelago, which is of volcanic origin, is east of northern Australia, northeast of New Caledonia, east o ...

* '' Rottboellia geminata'' – Thailand, Peninsular Malaysia, and southeastern Borneo * '' Rottboellia glandulosa'' – Indochina, Malesia, and New Guinea * '' Rottboellia goalparensis'' Bor -

Assam Assam (, , ) is a state in Northeast India, northeastern India, south of the eastern Himalayas along the Brahmaputra Valley, Brahmaputra and Barak River valleys. Assam covers an area of . It is the second largest state in Northeast India, nor ...

* '' Rottboellia helferi'' – Indochina and Peninsular Malaysia * '' Rottboellia impressa'' – western Cuba * '' Rottboellia laevispica'' Keng -

Anhui Anhui is an inland Provinces of China, province located in East China. Its provincial capital and largest city is Hefei. The province is located across the basins of the Yangtze and Huai rivers, bordering Jiangsu and Zhejiang to the east, Jiang ...

Jiangsu Jiangsu is a coastal Provinces of the People's Republic of China, province in East China. It is one of the leading provinces in finance, education, technology, and tourism, with its capital in Nanjing. Jiangsu is the List of Chinese administra ...

* '' Rottboellia lepidura'' – Kenya, Tanzania, and Mozambique * '' Rottboellia paradoxa'' de Koning & Sosef -

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 ...

* '' Rottboellia parodiana'' – Paraguay and northeastern Argentina * '' Rottboellia purpurascens'' Robyns - tropical

* '' Rottboellia rottboellioides'' – Philippines, New Guinea, and northern and eastern Australia * '' Rottboellia rugosa'' – south-central and southeastern United States from Texas to New Jersey * '' Rottboellia selloana'' – southern Brazil, northeastern Argentina, Paraguay, and Uruguay * '' Rottboellia striata'' – central Himalayas to Indochina and south-central China * '' Rottboellia tessellata'' – southeastern United States, from Louisiana to Florida and Georgia * '' Rottboellia tuberculosa'' – Cuba and southeastern United States (Alabama, Florida, and Georgia) ; Formerly included Numerous species now considered better suited to other genera: '' Chasmopodium'', ''

Coelorachis ''Coelorachis'' is a genus of plants in the Poaceae, 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 g ...

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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 Loxodera Phacelurus Schizachyrium ''Schizachyrium'' is a widespread genus of p ...

'', '' Eremochloa'', ''

Festuca ''Festuca'' (fescue) is a genus of flowering plants belonging to the grass family Poaceae (subfamily Pooideae). They are evergreen or herbaceous perennial tufted grasses with a height range of and a cosmopolitan distribution, occurring on ...

'', ''

Glyphochloa ''Glyphochloa'' is a genus of Indian plants in the grass family. ; Species See also dit * Tribe Andropogoneae * List of Poaceae genera Poaceae, also known as the true grasses, is the fourth largest plant family in the world with around 1 ...

'', ''

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 ...

'', ''

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.

'', ''

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'', ''

Ischaemum ''Ischaemum'' is a genus in the tribe Andropogoneae, belonging to the grass family, widespread in tropical and semitropical regions in many countries. Many species are known commonly as murainagrass. In 2022Shahid Nawaz(an agrostologist, The Bl ...

'', ''

Lasiurus ''Lasiurus'' is a genus of bats in the family Vespertilionidae. Its members are known as hairy-tailed bats or red bats. Phylogeny The following is the relationship of the three genera formerly included within ''Lasiurus'', based on an analysis ...

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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'' ...

'', ''

Loxodera ''Loxodera'' is a genus of African plants in the grass family.Launert, Georg Oskar Edmund. 1963. Boletim da Sociedade Broteriana, sér. 2 37: 80-82 ; Species * '' Loxodera bovonei'' (Chiov.) Launert - Zaïre, Zambia * ''Loxodera caespitosa'' (C ...

'', ''

Manisuris ''Manisuris'' is a genus of Indian plants in the Poaceae, 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 ...

'', '' Mnesithea'', ''

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 ...

'', '' Ophiuros'', '' Oropetium'', '' Parapholis'', '' Phacelurus'', '' Pholiurus'', '' Ratzeburgia'', ''

Rhytachne ''Rhytachne'' is a genus of plants in the Poaceae, 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 Ameri ...

'', ''

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 State ...

'', ''

Spartina ''Spartina'' is a genus of plants in the grass family, frequently found in coastal salt marshes. Species in this genus are commonly known as cordgrass or cord-grass, and are native to the coasts of the Atlantic Ocean in western and southern Eu ...

'', '' Stenotaphrum'', '' Thaumastochloa'', '' Urelytrum'' and '' Xerochloa''.

References

External links

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