United States, Mississippi, Washington, Frequent in ditch bottoms, often forming large patches. Collection in section 17, ~3/4 mi S of Helms on W side US 61 in front of pecan grove and opposite telephone cable sign.
33.49264 -90.83719 WGS84
T19N R6W SEC 17
Common plants: Cynodon dactylon, Digitaria sanguinalis, Rumex crispus, and Sorghum halepense.
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Plants deposited U.S Delta States Agricultural Research Center, Stoneville and U. of Miss.; seeds deposited USDA BARC Seed Collection, Beltsville, Md.