American Mannagrass

Glyceria grandis S. Watson - Grass family

Size

Mature Height: Up to around 6.0 feet

Plant Type: Graminoid

Features

Flower Color: Purple

Bloom Time: Mid Spring, Late Spring, Early Summer, Mid Summer

Conditions

Shade Tolerance: Intolerant

Ecosystem Interactions

Pollinators: Larval Host (Moth); Wind

Larval Species depending on American Mannagrass: Apamea impulsa

Native Range

  • USA:  Alaska, Arizona, California, Colorado, Connecticut, Delaware, Idaho, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oregon, Pennsylvania, Rhode I., South Dakota, Tennessee, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
  • CAN:  Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland, Northwest Territorie, Nova Scotia, Ontario, Prince Edward I., Québec, Saskatchewan, Yukon
Regional Native Status: L48 (N), AK (N), CAN (N), SPM (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.