View source for Glyceria maxima

{{SPlantbox
|genus=Glyceria
|species=maxima
|common_name=Glyceria aquatica, Molinia maxima, Poa aquatica Reed meadow grass,
|name_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
|habit=grass
|habit_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
|Min ht box=1
|Min ht metric=ft
|Max ht box=8
|Max ht metric=ft
|height_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
|Max wd box=unlimited
|width_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
|lifespan=perennial
|life_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
|exposure=sun
|sun_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
|features=flowers
|flower_season=early summer, mid summer, late summer
|flower_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
|flowers=white
|Temp Metric=°F
|min_zone=3
|usda_ref=Flora - A Gardener's Encyclopedia ISBN 0881925381
|max_zone=5
|image=Liesgras planten Glyceria maxima.jpg
|image_width=200
|image_caption=Reed Mannagrass
}}
'''''Glyceria maxima''''' (Hartm.) Holmb. (syn. ''G. aquatica'' (L.) Wahlenb.; ''G. spectabilis'' Mert. & W.D.J. Koch; ''Molinia maxima'' Hartm.; ''Poa aquatica'' L.; '''Reed Mannagrass'''; '''Reed Sweetgrass''') is a species of [[rhizome|rhizomatous]] perennial grasses in the [[Glyceria|mannagrass]] genus native to [[Europe]] and [[Western Siberia]] and growing in wet areas such as riverbanks and ponds. It is highly competitive and invasive and is often considered noxious weed outside its native range.