sorghastrum nutans, indiangrass, cosmopolitan genus of annual or short-lived perennial plant

agriculture annual bio biology blue botanical botany carolina cattle colourful control cosmopolitan dramatic drawing drawn eco element environment erosion flora floral forage genus gold grass grow growth hand herb herbal illinois illustration indian indiangrass landscape leaf meadow natural nature nutans oklahoma pasture perennial plant prairie remote seasonal seed shortlived sky sorghastrum south state summer vector wild wind winter yellow