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Glyceria grandis S. Watson
American manna grass, American mannagrass, Reed meadowgrass, Tall manna grass
Poaceae (Grass Family)
USDA Symbol: GLGR
American manna grass is a perennial grass which spreads by both thick rhizomes and stolons. Thick, stout, culms are 40-60 in. tall and sometimes decumbent at the base. The large, showy, openly branched, purplish panicle is up to 16 in. long and nods at the summit.
Cool-season grass has broad, pale leaves and very loose, open flowering stalks. Important member of wetland communities. (Ontario Native Plants 2002)
Bloom InformationBloom Color: Purple
Bloom Time: May , Jun , Jul , Aug
, WY Canada: NB
, QC Native Distribution:
Canada, s. to VA, TN
mts., n. IL, NE, NM, AZ
& CA Native Habitat:
Stream banks; non-tidal marshes; lake margins
Growing ConditionsLight Requirement: Sun
Soil Moisture: Wet
Soil Description: Wet soils.
Conditions Comments: A rapidly growing grass.
PropagationDescription: Not Available
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Ohio Prairie Nursery
- Hiram, OH
Record Last Modified: 2007-01-01
Research By: TWC Staff