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

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.

Locations

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

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 11, 2017. http://www.michiganflora.net/species.aspx?id=376.