A widespread weed native to Eurasia and doubtfully native to most of the New World.
Map of select IRC data for peninsular Florida
SOUTH FLORIDA Occurrence:
SOUTH FLORIDA Native Status:
SOUTH FLORIDA Cultivated Status:
FLORIDA KEYS Occurrence:
FLORIDA KEYS Native Status:
Map of select IRC data for the Florida Keys
Florida Keys History and Distribution:
Reported in 1884 by J. Cosmo Melvill for the island of Key West. Reported in 1907 by C.F. Millspaugh for the lower sandy Keys. Reported in 1913
by John Kunkel Small for pinelands, hammocks and disturbed sites throughout the Florida Keys.