''Glyceria'' is a widespread genus of

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 ...

common across

Eurasia Eurasia ( , ) is a continental area on Earth, comprising all of Europe and Asia. According to some geographers, Physical geography, physiographically, Eurasia is a single supercontinent. The concept of Europe and Asia as distinct continents d ...

, Australia,

North Africa North Africa (sometimes Northern Africa) is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region. However, it is sometimes defined as stretching from the Atlantic shores of t ...

, and the

Americas The Americas, sometimes collectively called America, are a landmass comprising the totality of North America and South America.''Webster's New World College Dictionary'', 2010 by Wiley Publishing, Inc., Cleveland, Ohio. When viewed as a sing ...

. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial

rhizomatous In botany and dendrology, a rhizome ( ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...

grasses found in wet areas in temperate regions worldwide. The base of the grass grows along the ground and may root at several places. Then it grows erect and bears leaf blades which may be flat or folded. The

panicle In botany, a panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a p ...

inflorescences nod when heavy. Some mannagrasses are considered weeds while others are endangered in their native habitats.Whipple, I. G. et al. (2007)
Molecular insights into the taxonomy of ''Glyceria'' (Poaceae: Meliceae) in North America.
American Journal of Botany 94(4) 551-57.Rodionov, A. V., et al. (2013)
Variability of the ITS1-5.8 S rDNA-ITS2 sequence during the divergence of sweet-grass species (''Glyceria'' R.Br.).
Russian Journal of Genetics: Applied Research 3(2) 83-90. ; Species * '' Glyceria acutiflora'' - creeping mannagrass - China, Korea, Japan, northeastern + east-central USA * ''

Glyceria alnasteretum ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' - Alaska,Tzvelev, N. N. 2006. Synopsis of the mannagrass ''Glyceria'' (Poaceae). Botaničeskii Žhurnal (Moscow & Leningrad) 91(2): 255–276 Russian Far East, Japan, Korea * '' Glyceria × amurensis'' -

Amur Oblast Amur Oblast () is a federal subject of Russia (an oblast), located on the banks of the Amur and Zeya rivers in the Russian Far East. The oblast borders Heilongjiang province of the People's Republic of China (PRC) to the south. The administrati ...

* ''

Glyceria arkansana ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' - Arkansas mannagrass - south-central USA * ''

Glyceria arundinacea ''Glyceria'' is a widespread genus of Poaceae, grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial Rhi ...

'' - Eurasia from Hungary to Korea * ''

Glyceria australis ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' - Australian sweetgrass - Australia * '' Glyceria borealis'' - northern mannagrass - western, north-central, + northeastern USA incl Alaska; Canada incl Yukon + Northwest Territories; Mexico ( Chihuahua) * '' Glyceria canadensis'' - rattlesnake mannagrass, Canadian mannagrass - Canada; USA (Northeast, Great Lakes, Oregon, Washington) * ''

Glyceria caspia ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' -

Caucasus The Caucasus () or Caucasia (), is a region spanning Eastern Europe and Western Asia. It is situated between the Black Sea and the Caspian Sea, comprising parts of Southern Russia, Georgia, Armenia, and Azerbaijan. The Caucasus Mountains, i ...

* ''

Glyceria chinensis ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' - China (

Yunnan Yunnan; is an inland Provinces of China, province in Southwestern China. The province spans approximately and has a population of 47.2 million (as of 2020). The capital of the province is Kunming. The province borders the Chinese provinces ...

Guizhou ) , image_skyline = , image_caption = , image_map = Guizhou in China (+all claims hatched).svg , mapsize = 275px , map_alt = Map showing the location of Guizhou Province , map_caption = Map s ...

) * ''

Glyceria colombiana ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' - Colombia * ''

Glyceria declinata ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' - waxy mannagrass, low glyceria, small sweet-grass - Europe, Morocco,

Madeira Madeira ( ; ), officially the Autonomous Region of Madeira (), is an autonomous Regions of Portugal, autonomous region of Portugal. It is an archipelago situated in the North Atlantic Ocean, in the region of Macaronesia, just under north of ...

Azores The Azores ( , , ; , ), officially the Autonomous Region of the Azores (), is one of the two autonomous regions of Portugal (along with Madeira). It is an archipelago composed of nine volcanic islands in the Macaronesia region of the North Atl ...

, Canary Islands; naturalized in scattered locales in North America * ''

Glyceria depauperata ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' - Japan,

Kuril Islands The Kuril Islands or Kurile Islands are a volcanic archipelago administered as part of Sakhalin Oblast in the Russian Far East. The islands stretch approximately northeast from Hokkaido in Japan to Kamchatka Peninsula in Russia, separating the ...

* '' Glyceria × digenea'' - France, Czech Republic * '' Glyceria drummondii'' - Western Australia * '' Glyceria elata'' - tall mannagrass - western USA, British Columbia, Alberta * '' Glyceria fluitans'' - water mannagrass, floating sweet-grass - Morocco; Eurasia from Iceland + Portugal to Turkmenistan * '' Glyceria × gatineauensis'' - Québec, New York, West Virginia * '' Glyceria grandis'' - American mannagrass - USA incl Alaska; Canada incl Yukon + Northwest Territories * '' Glyceria insularis'' -

Tristan da Cunha Tristan da Cunha (), colloquially Tristan, is a remote group of volcano, volcanic islands in the South Atlantic Ocean. It is one of three constituent parts of the British Overseas Territories, British Overseas Territory of Saint Helena, Ascensi ...

* '' Glyceria ischyroneura'' - Japan,

, Korea * '' Glyceria latispicea'' -

New South Wales New South Wales (commonly abbreviated as NSW) is a States and territories of Australia, state on the Eastern states of Australia, east coast of :Australia. It borders Queensland to the north, Victoria (state), Victoria to the south, and South ...

* '' Glyceria leptolepis'' - Russian Far East, China incl Taiwan, Korea, Japan * '' Glyceria leptorhiza'' - Korea,

Honshu , historically known as , is the largest of the four main islands of Japan. It lies between the Pacific Ocean (east) and the Sea of Japan (west). It is the list of islands by area, seventh-largest island in the world, and the list of islands by ...

Hokkaido is the list of islands of Japan by area, second-largest island of Japan and comprises the largest and northernmost prefectures of Japan, prefecture, making up its own list of regions of Japan, region. The Tsugaru Strait separates Hokkaidō fr ...

Heilongjiang Heilongjiang is a province in northeast China. It is the northernmost and easternmost province of the country and contains China's northernmost point (in Mohe City along the Amur) and easternmost point (at the confluence of the Amur and Us ...

Khabarovsk Khabarovsk ( ) is the largest city and the administrative centre of Khabarovsk Krai, Russia,Law #109 located from the China–Russia border, at the confluence of the Amur and Ussuri Rivers, about north of Vladivostok. As of the 2021 Russian c ...

Zabaykalsky Krai Zabaykalsky Krai is a federal subjects of Russia, federal subject of Russia (a krai), located in the Russian Far East. Its administrative center is Chita, Zabaykalsky Krai, Chita. As of the Russian Census (2010), 2010 Census, the population was ...

* '' Glyceria leptostachya'' - davy mannagrass, narrow mannagrass - California, Oregon, Washington, British Columbia, Alaska * '' Glyceria lithuanica'' - Lithuanian mannagrass - northern Eurasia from Norway to Korea * ''

Glyceria maxima ''Glyceria maxima'' (syn. ''G. aquatica'' (L.) Wahlenb.; ''G. spectabilis'' Mert. & W.D.J. Koch; ''Molinia maxima'' Hartm.; ''Poa aquatica'' L.), ''imfe Nd'' commonly known as great manna grass, reed mannagrass, reed sweet-grass, and greater swee ...

'' - reed mannagrass, English watergrass, reed sweet-grass - Eurasia from Ireland to

Xinjiang Xinjiang,; , SASM/GNC romanization, SASM/GNC: Chinese postal romanization, previously romanized as Sinkiang, officially the Xinjiang Uygur Autonomous Region (XUAR), is an Autonomous regions of China, autonomous region of the China, People' ...

* '' Glyceria melicaria'' - melic mannagrass - eastern North America * '' Glyceria multiflora'' - Chile, Argentina, Uruguay,

Rio Grande do Sul Rio Grande do Sul (, ; ; "Great River of the South") is a Federative units of Brazil, state in the South Region, Brazil, southern region of Brazil. It is the Federative units of Brazil#List, fifth-most populous state and the List of Brazilian s ...

, Santa Catarina * '' Glyceria nemoralis'' - Caucasus, central + eastern Europe * '' Glyceria notata'' - marked glyceria, plicate sweet-grass - Eurasia + North Africa from Denmark + Morocco to

* '' Glyceria nubigena'' - Great Smoky Mountain mannagrass -

Great Smoky Mountains The Great Smoky Mountains (, ''Equa Dutsusdu Dodalv'') are a mountain range rising along the Tennessee–North Carolina border in the southeastern United States. They are a subrange of the Appalachian Mountains and form part of the Blue Ridg ...

North Carolina North Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, South Carolina to the south, Georgia (U.S. stat ...

Tennessee Tennessee (, ), officially the State of Tennessee, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Kentucky to the north, Virginia to the northeast, North Carolina t ...

* '' Glyceria obtusa'' - Atlantic mannagrass - eastern North America * '' Glyceria occidentalis'' - northwestern mannagrass - California, Oregon, Washington, British Columbia, Idaho, Nevada * '' Glyceria × ottawensis'' -

Ontario Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it ...

* '' Glyceria × pedicellata'' - northern + central Europe * '' Glyceria pulchella'' - MacKenzie Valley mannagrass, beautiful glyceria - Alaska, western Canada incl Yukon + Northwest Territories * '' Glyceria saltensis'' -

Salta Province Salta () is a Provinces of Argentina, province of Argentina, located in the northwest of the country. Neighboring provinces are from the east clockwise Formosa Province, Formosa, Chaco Province, Chaco, Santiago del Estero Province, Santiago del Es ...

in Argentina * '' Glyceria septentrionalis'' - floating mannagrass - eastern USA, eastern Canada, northeastern Mexico * '' Glyceria spicata'' - India, Mediterranean * '' Glyceria spiculosa'' - eastern Russia, northern China, Korea * ''

Glyceria striata ''Glyceria striata'' is a species of ''Glyceria'' which is known by the common names fowl mannagrass and ridged glyceria. It is native to much of North America, from Alaska and northern Canada to northern Mexico. It is a common bunchgrass specie ...

'' - fowl mannagrass, ridged glyceria - Canada incl Arctic Territories, USA incl Alaska, Mexico, Guatemala * '' Glyceria × tokitana'' Masamura - Japan * '' Glyceria tonglensis'' C.B.Clarke - Himalayas, China incl Tibet ; formerly included Numerous species now considered better suited to other genera: '' Arctophila

Catabrosa ''Catabrosa'' is a small but widespread genus of plants in the grass family native to temperate areas of Eurasia, the Americas, and a few places in Africa. ''Catabrosa aquatica'' is in flower in Europe from June to August, and the seeds ripen f ...

Colpodium ''Colpodium'' is a genus of plants in the grass family, native primarily to Asia but with a few species on certain mountains in Africa. ; SpeciesMill, R. R. 1985. ''Eremopoa, Nephelochloa, Catabrosella, Colpodium, Hyalopoa, Catabrosa, Paracolpo ...

Dryopoa

Eragrostis ''Eragrostis'' is a large and widespread genus of plants in the Poaceae, grass family, found in many countries on all inhabited continents and many islands. ''Eragrostis'' is commonly known as lovegrass or canegrass. The name of the genus is de ...

Hydrocotyle ''Hydrocotyle'', also called floating pennywort, water pennywort, Indian pennywort, dollar weed, marsh penny, thick-leaved pennywort and white rot, is a genus of prostrate, perennial aquatic or semi-aquatic plants formerly classified in the famil ...

Melica ''Melica'' is a genus of perennial grasses known generally as melic or melic grass. They are found in most temperate regions of the world. Melic grasses are clumping to short-rhizomatous grasses. They have flowering culms up to tall bearing ...

Phippsia

Poa ''Poa'' is a genus of about 570 species of Poaceae, grasses, native to the temperate regions of both hemispheres. Common names include meadow-grass (mainly in Europe and Asia), bluegrass (mainly in North America), tussock (some New Zealand spe ...

Puccinellia ''Puccinellia'' is a genus of plants in the Poaceae, grass family, known as alkali grass or salt grass. These grasses grow in wet environments, often in Saline water, saline or alkaline conditions. They are native to temperate to Arctic regions ...

Scolochloa ''Scolochloa'' is a genus of grasses in the family Poaceae / Gramineae, now containing a single species, ''Scolochloa festucacea''. Common rivergrass is a common name for the species. ''Scolochloa festucacea'' grows in Europe, temperate Asia, an ...

Torreyochloa Triplasis''

References

{{Taxonbar, from=Q157515 Poaceae genera Grasses of Africa Grasses of Asia Grasses of Europe Grasses of North America Grasses of Oceania Grasses of South America