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Native Plant Database

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Glyceria grandis S. Wats.

American manna grass, American mannagrass, Reed meadowgrass, Tall manna grass

Poaceae (Grass Family)

USDA Symbol: GLGR

USDA Native Status: Native to U.S.

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)

 

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Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Venation: Parallel
Fruit Type: Caryopsis
Flower:
Fruit:
Size Class: 3-6 ft.

Bloom Information

Bloom Color: Purple
Bloom Time: May , Jun , Jul , Aug

Distribution

USA: AK , AZ , CA , CO , CT , IA , ID , IL , IN , MA , MD , ME , MI , MN , MS , MT , ND , NE , NH , NJ , NM , NV , NY , OH , OR , PA , RI , SD , TN , UT , VA , VT , WA , WI , WV , WY
Canada: NB , NL , NS , ON , PE , QC
Native Distribution: Canada, s. to VA, TN mts., n. IL, NE, NM, AZ & CA
Native Habitat: Stream banks; non-tidal marshes; lake margins
USDA Native Status: L48(N), AK(N), CAN(N), SPM(N)

Growing Conditions

Light Requirement: Sun
Soil Moisture: Wet
Soil Description: Wet soils.
Conditions Comments: A rapidly growing grass.

Propagation

Description: Not Available
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

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

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:

North American Native Plant Society - Etobicoke, ON
Native Seed Network - Corvallis, OR

Bibliography

Bibref 841 - Native Alternatives to Invasive Plants (2006) Burrell, C. C.

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Recommended Species Lists

Find native plant species by state. Each list contains commercially available species suitable for gardens and planned landscapes. Once you have selected a collection, you can browse the collection or search within it using the combination search.

View Recommended Species page

Additional resources

USDA: Find Glyceria grandis in USDA Plants
FNA: Find Glyceria grandis in the Flora of North America (if available)
Google: Search Google for Glyceria grandis

Metadata

Record Modified: 2007-01-01
Research By: TWC Staff

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