Please try our next iteration of the Michigan Flora Online here. Beginning on February 1, 2023, will point to this new site.

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.

Tussilago farfara L.
Common Name: COLTSFOOT
Coefficient of Conservatism: *
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Ad P-Forb

A Eurasian species, usually in wet disturbed places in our region. Likely brought from Europe for medicinal uses and first collected in  by D. Cooley in 1840 (no locality given, but presumably in Macomb or Oakland Co.). It is still rather local in Michigan but its spread elsewhere suggests that the species will continue to increase.

This rather woolly plant blooms very early in the spring, before development of the long-petioled leaves with broad, ± round-cordate blades. One of the relatively few invasive species that can invade wetlands, it's liking of calcareous seeps and wet calcareous shores make this an upcoming problem for natural wetlands.


Berrien County
Crawford County
Huron County
Ingham County
Jackson County
Leelanau County
Lenawee County
Mackinac County
    Only on Bois Blanc, Mackinac, Round Islands
Macomb County
Oakland 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.