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Glyceria striata.jpg
Glyceria striata
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Pooideae
Supertribe: Melicodae
Tribe: Meliceae
Genus: Glyceria
R.Br. 1810 not Nutt. 1818 (syn of Hydrocotyle in Apiaceae)
Type species
Glyceria fluitans
  • Exydra Endl.
  • Hemibromus Steud.
  • Hydrochloa Hartm. 1819), illegitimate homonym not P.Beauv. 1812
  • Hydropoa (Dumort.) Dumort.
  • Nevroloma Raf.
  • Porroteranthe Steud.

Glyceria is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas.[2][3][4][5]

Glyceria is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous 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.[6][7][8][9][10]

formerly included[1]

Numerous species now considered better suited to other genera: Arctophila Catabrosa Colpodium Dryopoa Eragrostis Hydrocotyle Melica Phippsia Poa Puccinellia Scolochloa Torreyochloa Triplasis