Side-Oats Grama     Bouteloua curtipendula


Description: This warm-season grass is bunchy-appearing because of the dense root system of short rhizomes. Side-Oats Grama is actually a sod-forming grass. When in flower during summer, the slender flower stalks, from 30 to 90 cm tall, give the plant an overall height which classes the plant as a mid-grass.

 

Leaf: The flat leaf blades have stiff hairs on the edges. These hairs with swollen bases help identify the young plant. Lower leaves curl and whiten when dry.

 

Flower: Flower clusters are in rows mostly along one side of the upper stem, contribution to its name. Although the flower parts are inconspicuous, in full bloom the bright reddish orange stamens protrude and are delicately showy.

 

Blooming months: July-September

 

 

 

 

 

 

 

 

 

 

 

Discussion: Side-Oats Grama is a palatable and nutritious grass.

 

Distribution: Side-Oats Grama occupies all manner of upland sites from lower slopes to chiefly the brow of the hill or the breaks near the crest. It may occupy deep or shallow soil. This species ranges widely over the grasslands east of the Rocky Mountains. It is more common in Mixed Prairie than in True Prairie, especially among the tall grasses where it does not endure the shading so well.  

 

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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