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The new site offers several benefits over the existing website, including real coordinate mapping, giving a clearer view of the density of documentation as well as more precision about plant distributions and their link to landforms. We will also have the ability to update species pages more regularly, both in terms of new collections and as more existing Michigan specimens are georeferenced. In addition, we have a better photo display, and offer indented keys.

Cyclachaena xanthiifolia (Nutt.) Fresen.
Synonym: Iva xanthiifolia
Coefficient of Conservatism: *
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Ad A-Forb

Cyclachaena xanthiifolia A. A. Reznicek

Iva xanthiifolia of Michigan Flora.

Native to the central part of North America, adventive eastward and seldom seen in Michigan, although first collected in the Upper Peninsula as long ago as 1888 (Keweenaw Co.) and in the Lower Peninsula first in 1893 (Ingham Co.). Disturbed sites in dumps, roadsides, vacant lots, and around barnyards and old buildings. A coarse, fetid plant, occasionally appearing in abundance after disturbance.


Alpena County
Baraga County
Berrien County
Cheboygan County
Delta County
Dickinson County
Emmet County
Hillsdale County
Houghton County
Ingham County
Kalamazoo County
Keweenaw County
Lenawee County
Marquette County
Oakland County
St. Clair County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 30, 2023.