''Glyceria'' is a widespread genus of grass family common across

Eurasia Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelago ...

, Australia,

North Africa North Africa, or Northern Africa is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region, and it is sometimes defined as stretching from the Atlantic shores of Mauritania in ...

, and the

Americas The Americas, which are sometimes collectively called America, are a landmass comprising the totality of North and South America. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. Along with th ...

. ''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 ho ...

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 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 ( rus, Аму́рская о́бласть, r=Amurskaya oblast, p=ɐˈmurskəjə ˈobləsʲtʲ) is a federal subject of Russia (an oblast), located on the banks of the Amur and Zeya Rivers in the Russian Far East. The administrat ...

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

Glyceria arundinacea ''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 ...

'' - Eurasia from Hungary to Korea * '' Glyceria australis'' - 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'' -

Caucasus The Caucasus () or Caucasia (), is a region between the Black Sea and the Caspian Sea, mainly comprising Armenia, Azerbaijan, Georgia (country), Georgia, and parts of Southern Russia. The Caucasus Mountains, including the Greater Caucasus range ...

* '' Glyceria chinensis'' - China (

Yunnan Yunnan , () is a landlocked province in the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Kunming. The province borders the C ...

Guizhou Guizhou (; formerly Kweichow) is a landlocked province in the southwest region of the People's Republic of China. Its capital and largest city is Guiyang, in the center of the province. Guizhou borders the autonomous region of Guangxi to the ...

) * '' Glyceria colombiana'' - Colombia * '' Glyceria declinata'' - waxy mannagrass, low glyceria, small sweet-grass - Europe, Morocco, Madeira,

Azores ) , motto =( en, "Rather die free than subjected in peace") , anthem= ( en, "Anthem of the Azores") , image_map=Locator_map_of_Azores_in_EU.svg , map_alt=Location of the Azores within the European Union , map_caption=Location of the Azores wi ...

, 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 (; rus, Кури́льские острова́, r=Kuril'skiye ostrova, p=kʊˈrʲilʲskʲɪjə ɐstrɐˈva; Japanese: or ) are a volcanic archipelago currently administered as part of Sakhalin Oblast in the ...

* '' Glyceria × digenea'' - France, Czech Republic * ''

Glyceria drummondii ''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 ...

'' - 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 ''Glyceria grandis'' is a species of grass known by the common name American mannagrass. It is native to Canada and the United States, where it is widespread in distribution. It is most commonly found in wet areas such as riverbanks and ponds. D ...

'' - 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 volcanic islands in the South Atlantic Ocean. It is the most remote inhabited archipelago in the world, lying approximately from Cape Town in South Africa, from Saint Helena a ...

* '' Glyceria ischyroneura'' - Japan,

, Korea * '' Glyceria latispicea'' -

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

* ''

Glyceria leptolepis ''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 ...

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

Glyceria leptorhiza ''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 ...

'' - Korea,

Honshu , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island se ...

Hokkaido is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The lar ...

Heilongjiang Heilongjiang () formerly romanized as Heilungkiang, is a province in northeast China. The standard one-character abbreviation for the province is (). It was formerly romanized as "Heilungkiang". It is the northernmost and easternmost province ...

, Khabarovsk,

Zabaykalsky Krai Zabaykalsky Krai ( rus, Забайкальский край, r=Zabaikal'skii krai, p=zəbɐjˈkalʲskʲɪj kraj, lit. " Transbaikal krai"; bua, Yбэр Байгалай хизаар, Uber Baigalai Xizaar) is a federal subject of Russia (a krai ...

* '' Glyceria leptostachya'' - davy mannagrass, narrow mannagrass - California, Oregon, Washington, British Columbia, Alaska * ''

Glyceria lithuanica ''Glyceria lithuanica'' is a species of grass in the family Poaceae. It is native to Eurasia. References {{Taxonbar, from=Q311917 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.), commonly known as great manna grass, reed mannagrass, reed sweet-grass, and greater sweet-grass is a ...

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

Xinjiang Xinjiang, SASM/GNC: ''Xinjang''; zh, c=, p=Xīnjiāng; formerly romanized as Sinkiang (, ), officially the Xinjiang Uygur Autonomous Region (XUAR), is an autonomous region of the People's Republic of China (PRC), located in the northwest ...

* ''

Glyceria melicaria ''Glyceria melicaria'', the melic mannagrass or northeastern mannagrass, is a perennial grass found in the eastern United States. Its specific epithet ''melicaria'' means "similar to '' Melica''". Its diploid number is 40. Description ''Glyceri ...

'' - melic mannagrass - eastern North America * '' Glyceria multiflora'' - Chile, Argentina, Uruguay, Rio Grande do Sul, 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 Ridge ...

North Carolina North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and ...

Tennessee Tennessee ( , ), officially the State of Tennessee, is a landlocked state in the Southeastern region of the United States. Tennessee is the 36th-largest by area and the 15th-most populous of the 50 states. It is bordered by Kentucky to th ...

* ''

Glyceria obtusa ''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 ...

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

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central C ...

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

Glyceria saltensis ''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 ...

'' - Salta Province 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'' - 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 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 derived fr ...

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

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

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

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 ''Torreyochloa'' is a genus of North American and northeast Asian plants in the grass family. False mannagrass is a common name for plants in this genus. ; Species * '' Torreyochloa erecta'' (Hitchc.) Church - western United States ( CA NV OR) ...

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