Parthenium hysterophorus L.
Common Name: SANTA MARIA
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad A-Forb

Parthenium hysterophorus R. W. Smith

Native to Latin America, but adventive northward. Collected in 1917 at a construction site on the University of Michigan campus in Ann Arbor (Washtenaw Co.).


Washtenaw County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 20, 2018.