American MannagrassGlyceria grandis
Loosely clumped, perennial grass with culms growing 4-6' tall. Giant manna grass has been used for wetland restorations, especially in marches, ditches and fens. A good forage material for wildlife, and seems to increase with trampling and grazing.
USDA symbol: GLGR
General Information
| Plant Type | Grass |
|---|---|
| Height | 3 to 5 feet |
| Light Exposure | Sun |
| Soil Moisture | Wet |
| Bloom Color | Green |

Tolerances
| Flooding / Inundation Tolerance | Very High |
|---|---|
| General Resilience | 5 |
| Salt Tolerance | Low |
| Stress Tolerance | General Disturbance |
Pollinator Value: Low
| Bloom Months | July to September |
|---|
Project Planning
| Project Type | Boulevard, Restoration |
|---|---|
| Coefficient of Conservatism | 5 |
| Herbivore Sensitivity | High |
| Lifespan | Perennial |
| Rate of Spread | Slow |
| Vegetative Reproduction | Clonal |
Range
| County | Aitkin, Anoka, Becker, Beltrami, Benton, Blue Earth, Carlton, Carver, Cass, Chippewa, Chisago, Clay, Clearwater, Cook, Crow Wing, Dodge, Douglas, Fillmore, Freeborn, Goodhue, Grant, Hennepin, Houston, Hubbard, Isanti, Itasca, Jackson, Kanabec, Kandiyohi, Kittson, Koochiching, Lake, Lake of the Woods, Lincoln, Marshall, Martin, Meeker, Mille Lacs, Morrison, Mower, Murray, Nicollet, Nobles, Norman, Olmsted, Otter Tail, Pine, Pipestone, Pope, Ramsey, Red Lake, Redwood, Renville, Rice, Roseau, Scott, Sherburne, St. Louis, Stearns, Steele, Todd, Wabasha, Wadena, Waseca, Washington, Watonwan, Wilkin, Winona, Wright, Yellow Medicine |
|---|---|
| Ecoregion | Driftless Area, Lake Agassiz Plain, North Central Hardwood Forests, Northern Glaciated Plains, Northern Lakes and Forests, Northern Minnesota Wetlands, Western Cornbelt Plains |
| Approximate Eco Province | Eastern Broadleaf Forest, Laurentian Mixed Forest, Prairie Parkland, Tallgrass Aspen Parklands |