Indian Grass     Sorghastrum nutans


Description: This native, warm-season perennial grass mixes with Big Bluestem, and resembles Big Bluestem when young. Indian Grass also attains heights between 1.5 to 2.0 or even 2.5 meters. Growth begins at about the same time as Big Bluestem, which is about the first of May.

 

Leaf: Stiff straight leaves project from the stem at 45 degree angles. Each leaf has a distinctive pair of toothlike, erect, narrow, pointed lobes at the point where the leaf blade joins the stem - these lobes are usually reddish to yellowish.

 

Flower: Although individual flowers are inconspicuous, the yellowish color is due to the yellow anthers. The flowers heads are narrow, elongate, and initially chestnut brown, later fading to grayish brown. The hairy seeds have twisted bristle tips about ˝ inches long. In the fall, parts of the prairie are colored gold with Indian grass seeds.

 

8-20

9-14

Flower head 8-20                  Seeds 10-7

 

 

Blooming months: late July-August

 

Discussion: Called the “best fuel” on the prairie, Indian grass prospers from a burn. Indian grass is nutritious to grazing livestock and is also consumed as prairie hay. The seeds can be harvested by combine and are often used in reclamation projects or in restoration of prairie.

 

Distribution: Indian Grass may frequently invade the drier uplands and particularly where there has been some mild disturbance such as an occasional burning. Indian Grass grows throughout the United States where tall grass can be supported. It is especially adapted to True Prairie and Texas prairies, In Mixed Prairie, it will be found mostly in ravines and valley bottoms.

 

Native or Introduced to Illinois: Native

 

Location: N41048.677’ W089040.972’

 

Copyright: © 2004 Nancy Trainor, Challand Middle School, Sterling, Illinois

                                ntrainor@sterlingschools.org

References:

Keller, Carolyn. Prairie Plants of Whiteside County, Whiteside IL County Natural Area Guardians, 1991.

Ladd, Doug. Tallgrass Prairie Wildflowers, The Nature Conservancy, 1995.

Peterson, Roger Tory. Wildflowers Northeastern/North Central North America, Houghton Mifflin Company, Boston, 1968.

Mohlenbroch, Robert H., and John W. Voigt. Prairie Plants of Illinois, Department of Conservation.

http://plants.usda.gov/

 

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