stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America

stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America

stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America

stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America

stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America

stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America

stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America

stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America

stout erect perennial grass of northern parts of Old World having silky flowering spikes; widely cultivated for pasture and hay; naturalized in North America

annual or perennial grasses including decorative and meadow species as well as notorious agricultural weeds