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.

Hieracium umbellatum L.
Coefficient of Conservatism: 7
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Hieracium umbellatum R. W. Smith

Often in dune areas, at edges of forests and in grassy openings, and in other sandy ± open sites; rock crevices and forest borders at Lake Superior; shores, thickets, and mixed forests. Several mixed and simultaneous collections of this species and H. kalmii indicate that the two frequently grow together.

American plants of this species have sometimes been segregated as H. scabriusculum Schwein. The inflorescence of both this species and H. kalmii is often umbelliform, although the heads may also be in an elongate panicle, as in H. scabrum. The characteristic dense little cone-shaped projections along the leaf margins are generally ca. 0.2–0.3 mm long.


Alcona County
Alger County
Arenac County
Bay County
Benzie County
Charlevoix County
    Only on Beaver Island
Chippewa County
Delta County
Houghton County
Huron County
Iosco County
Keweenaw County
    Including Isle Royale
Leelanau County
Manistee County
Mason County
Midland County
Ontonagon County
Schoolcraft County
St. Clair County
Van Buren County


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