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Glyceria canadensis

Glyceria canadensis (Michx.) Trin.

Rattlesnake Mannagrass

Poaceae (Grass Family)

Synonym(s): Panicularia canadensis

USDA Symbol: GLCA

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

From the Image Gallery

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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
Size Notes: Up to about 5 feet tall.
Leaf: Green

Bloom Information

Bloom Color: Green , Brown
Bloom Time: Jun , Jul , Aug
Bloom Notes: Flowers inconspicuous. Bloom color refers to spikelets. Bloom time refers to fruiting period.

Distribution

USA: CT , DC , DE , IL , IN , MA , MD , ME , MI , MN , NC , NH , NJ , NY , OH , OR , PA , RI , VA , VT , WA , WI , WV
Canada: BC , MB , NB , NL , NS , ON , PE , QC , SK
Native Distribution: Several authorities, including Flora of North America, consider this species non-native (introduced) in western North America.

Growing Conditions

Water Use: Medium
Light Requirement: Sun
CaCO3 Tolerance: Medium

National Wetland Indicator Status

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:	OBL				OBL	OBL		OBL	OBL	OBL

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 Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

North American Native Plant Society - Etobicoke, ON

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

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

Metadata

Record Modified: 2023-06-06
Research By: TWC Staff

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