Parthenium hysterophorus L.

PLANTS OF PUERTO RICO
ASTERACEAE
Parihenium hxpierophorus L. Dupl. det. M. O. Dillon 2002
PUERTO RICO: Municipio of Manatí: Barrio Coto Norte. Along Rte 686,
at exit from Expressway 22. 18.26.34N. 66.27.55W. Alt. ca. 60m.
Very abundant roadside weeds. Flowers white. Chromosome voucher.
Silica gel dried leaves preserved at the DNA Bank, Missouri Botanical
Garden.
Robert Merrill King and
Robert M. Garvey No. 12050
February 16, 2002