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Glyceria fluitans - (L.)R.Br.
                 
Common Name Floating Manna Grass, Water mannagrass
Family Poaceae or Gramineae
USDA hardiness 4-8
Known Hazards None known
Habitats Shallow water, either stagnant or slow flowing, or in wet soils whether acid or calcareous[17].
Range Europe, including Britain, temperate Asia the Caucasus and N. America.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Fully Hardy Wet Soil Water Plants Full sun

Summary

Glyceria fluitans Floating Manna Grass, Water mannagrass


http://commons.wikimedia.org/wiki/File:450_Glyceria_fluitans.jpg
Glyceria fluitans Floating Manna Grass, Water mannagrass
http://www.commanster.eu/commanster.html
   
Physical Characteristics
 icon of manicon of flower
Glyceria fluitans is a PERENNIAL growing to 0.5 m (1ft 8in) by 0.5 m (1ft 8in).
It is hardy to zone (UK) 5 and is not frost tender. It is in flower from May to August. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Wind.Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils and can grow in very acid and very alkaline soils.
It cannot grow in the shade. It prefers wet soil and can grow in water.

Synonyms
Panicularia fluitans

Habitats
 Pond; Bog Garden;
Edible Uses
Edible Parts: Seed.
Edible Uses:

Seed - raw or cooked[43, 57, 100]. A sweetish taste, the seed was considered a delicacy in some parts of Europe and was an article of commerce until well into the 20th century[183]. A flour from the seed is said to make a bread little inferior to wheat bread, the flour can also be used as a thickener in soups etc when it imparts a sweet delicate flavour[183]. Unfortunately, the seed is very small and therefore the plant is relatively unproductive[K].
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.



None known
Other Uses
Incense.

The leaves have been burnt as an incense[257].
Cultivation details
Historic Staple;  Management: Standard;  Staple Crop: Balanced carb.

Succeeds in most soils, so long as they are wet, and in shallow water[115]. Dislikes shade. This plant is occasionally cultivated for its edible seed[115], it is not very large and is somewhat fiddly to harvest but is considered to be an epicure's food[183].
Propagation
Seed - sow spring in a greenhouse in a pot standing in 3 - 5cm of water. Surface sow the seed, or only just cover it. Germination should take place within 3 weeks. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in early summer. If you have sufficient seed then it can be sown outdoors in situ in mid to late spring. Division in spring. Very easy, larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.
Other Names
Found In
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Glyceria acutifloraCreeping mannagrass10
Glyceria borealisSmall floating mannagrass20
Glyceria occidentalisNorthwestern mannagrass10
Glyceria plicata 10
Glyceria septentrionalisEastern Manna Grass, Floating mannagrass10
Glyceria striataFowl Manna Grass, Fowl mannagrass10
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Expert comment
 
Author
(L.)R.Br.
Botanical References
17
Links / References
For a list of references used on this page please go here
Readers comment
 
Elizabeth H.
Andreas Emmerling-Skala Wed Dec 3 16:05:32 2003
There are two important german publications about the history and use of this plant:

Ascherson, Paul, 1895-1896: Eine verschollene Getreideart. - Brandenburgia. Monatsblatt der Gesellschaft für Heimatkunde der Provinz Brandenburg zu Berlin 4: 37-60

Bastine, W., 1963: Brandenburgisches Manna (Glyceria fluitens (L.) R.Br.). Ein Beitrag zur Monographie eines Wildgetreides. - Jahrbuch für Brandenburgische Landesgeschichte [Berlin; ISSN: 0447-2683] 14: 53-71

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Subject : Glyceria fluitans  

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