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Notes on cockleburs (Ambrosiaceae; Xanthium) of the District of Columbia and vicinity
McAtee, W. L.;Metcalf, F. P.
Date:
1920
Citation:
McAtee, W. L. and Metcalf, F. P. 1920. "Notes on cockleburs (Ambrosiaceae; Xanthium) of the District of Columbia and vicinity." Proceedings of the Biological Society of Washington. 33:177–179.