The open plant encyclopedia
Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.
The plants people record most in your country, and ones that grow there wild.
Filter by what you want to do, shape, origin, country, care and safety.
Glyceria fluitans
Also called Floating Sweet-grass, Flottin sweet grass, Sweet Grass, Water manna grass, Flote-grass, floating sweet-grass, Flote Grass, Floating Mannagrass
Water mannagrass is a perennial grass that grows in wet ground, shallow water, ditches and pond margins, often with its leaves floating on the surface. The key to growing it is keeping its roots constantly wet or submerged.
Glyceria fluitans (syns Festuca fluitans, Poa fluitans, Panicularia fluitans), known as floating sweet-grass and water mannagrass, is a species of perennial grass in the genus Glyceria native to Europe, the Mediterranean region and Western Asia and occurring in wet areas such as ditches, riverbanks and ponds.
It has a creeping rootstock, a thick stem which rises to one metre. The leaves are long, narrow and pale green, rough on both sides, often folded at the keel which lies on the surface of the water.
Small floating mannagrass · American mannagrass · Davy mannagrass · Reed mannagrass
Text excerpted from the Wikipedia article Glyceria fluitans by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
