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Native Plant Database

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Glyceria grandis var. grandis

Glyceria grandis S. Watson var. grandis

American mannagrass

Poaceae (Grass Family)

Synonym(s): Glyceria maxima ssp. grandis, Glyceria maxima var. americana, Panicularia grandis

USDA Symbol: GLGRG

USDA Native Status: L48 (N), AK (N), CAN (N), SPM (N)

 

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Plant Characteristics

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

Bloom Information

Bloom Color: Not Applicable
Bloom Time: Jun , Jul , Aug
Bloom Notes: The flowers (florets) of grasses are usually minute and therefore not visible to the naked eye.

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 , NS , PE

Additional resources

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

Metadata

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

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