A historical botanical drawing of yellow nutsedge, Cyperus esculentus, from the U.S. Department of Agriculture-Natural Resources Conservation Service Plants Database; Britton, N.L., and A. Brown, 1913, "An Illustrated Flora of the Northern United States, Canada and the British Possessions," Charles Scribner's Sons.
COMMENTING POLICY:Readers are encouraged to post comments that are germane to the article. We reserve the right to remove any user, and to delete comments that contain abusive language or personal threats, as well as those that are racist or demeaning. Readers may report comments by clicking "Report Abuse." Once a comment has been flagged, a Baltimore Sun staffer will investigate. Click here for more information on commenting.