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Liesgras planten Glyceria maxima.jpg
Glyceria maxima
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Poaceae
Subfamily: Pooideae
Genus: Glyceria
R. Br.

40-55, see text

For the saint, see Saint Glyceria.

Glyceria is a genus of grasses known commonly as mannagrass 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.

There are about 40[1] to 55 species in the genus.[2]

Species include:[1]


  1. ^ a b Whipple, I. G. et al. (2007). Molecular insights into the taxonomy of Glyceria (Poaceae: Meliceae) in North America. Am. J. Bot. 94(4) 551-57.
  2. ^ 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.

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