Switchgrass

Panicum virgatum

Copyright, Mark W. Bierner

Switchgrass, also known as Tall Panicgrass, is a tall-growing grass found in marshes, lakeshores, and meadows. It grows in large clumps.

Switchgrass has green blades as leaves, with a reddish tint. Blades can be up to five feet tall and are about 1/2 inch wide.

Flowers are small and are grouped together in a column called a panicle. Panicles of flowers are on the ends of long stems which can be up to seven feet tall. The panicles can be 10 inches long. The reddish flowers bloom from June to August before they are replaced with many seeds.

In the Fall, Switchgrass blades turn pale yellow and the seeds on the panicles turn beige.

This plant is a perennial, which means the parts above ground die back in the Winter, but the roots send up new leaves and flowers each Spring. Switchgrass also spreads with rhizomes (underground stems) which make new plant sections.

R.E. Redmann, Department of Plant Sciences, University of Saskatchewan

Switchgrass often grows near Eastern Redcedar, Loblolly Pine, Virginia Pine, and Black Willow. It grows along with other grasses, weeds, and wildflowers. It is very competitive and will sometimes crowd out other plants.

Many birds and small mammals eat Switchgrass seeds, including: Canada Goose, Mourning Dove, Northern Bobwhite, Wild Turkey, Red-winged Blackbird, Northern Cardinal, Brown-headed Cowbird, Dark-eyed Junco, Meadow Vole, White-footed Mouse, Eastern Gray Squirrel, Mallard, Eastern Chipmunk, and sparrows.

Eastern Cottontails and Muskrats eat the leaves of Switchgrass, and White-tailed Deer dig up the rhizomes in the Winter.

Switchgrass also provides excellent cover for birds and small animals. Geese, ducks, bobwhite, and other birds build nests in clumps of this grass. Many songbirds also use leaves and stems as nest materials.

Relationships in Nature:

Animals Using as Food Source

Animals Using as Shelter

Associations With Other Plants

OTHER

Northern Bobwhite

Canada Goose

Smooth Crabgrass

Mourning Dove D

Mourning Dove

Mallard

Common Dandelion

American Goldfinch D

Wild Turkey

Northern Bobwhite

Black Willow

Eastern Chipmunk D

Northern Cardinal

Meadow Vole

Loblolly Pine

Red-winged Blackbird D

Brown-headed Cowbird

White-tailed Deer

Virginia Pine

Dark-eyed Junco D

Muskrat

Eastern Gray Squirrel

Eastern Redcedar

Meadow Vole D

Eastern Cottontail

Northern Cardinal

Common Reed

Northern Cardinal D

Meadow Vole

Fiery Searcher

Devil's Beggar-tick

White-footed Mouse

Bald Eagle

Lamb's Quarters

Eastern Gray Squirrel

Common Crow

Common Ragweed

Dark-eyed Junco

Eastern Mole

Jimsonweed

Eastern Chipmunk

White-breasted Nuthatch

Marsh Bulrush

Canada Goose

American Robin

Buttonbush

Mallard

Eastern Bluebird

Bird-foot Violet

Red-winged Blackbird

Cedar Waxwing

Chicory

White-tailed Deer

Common Yellowthroat

Kentucky Bluegrass

American Goldfinch

Chigger

Wild Strawberry

Striped Skunk

Mourning Dove

Common Mullein

Woodchuck

Northern Ringneck Snake

Polyphemus Moth

Relationship to Humans:

Switchgrass is often planted as a landscape plant in gardens. People who want to plant wildflower meadows almost always plant Switchgrass in them. This grass is also planted as hay for livestock. It is an excellent wildlife attractor.

SCIENTIFIC CLASSIFICATION

KINGDOM
Magnoliophyta
DIVISION
Magnoliopsida
CLASS
Liliopsida
ORDER
Cyperales
FAMILY
Poaceae
GENUS
Panicum
SPECIES
Panicum virgatum

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