Crepis tectorum L.
Common Name: HAWK'S BEARD
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad A-Forb

A Eurasian species of local occurrence. A lawn weed in Ingham and St. Clair Cos. in the 1880’s, but except for a 1935 collection from Ann Arbor (Washtenaw Co.), not gathered again in the state until 1978; since, apparently spreading (or being discovered) rapidly along roadsides and in lawns, fields, plantations, vacant lots, logged areas, gravel pits, and other disturbed sites.

Good magnification (20–30×) and illumination at the right angle are often necessary to see, on the inside of the phyllaries, the distinctive tiny hairs that will identify this species and C. biennis if achenes are not mature.

Locations

Alger County
Allegan County
Arenac County
Benzie County
Berrien County
Clare County
Delta County
Huron County
Ingham County
Iron County
Isabella County
Kalkaska County
Keweenaw County
    Only on Isle Royale
Lenawee County
Luce County
Mecosta County
Midland County
Montcalm County
Montmorency County
Ontonagon County
Oscoda County
Ottawa County
Saginaw County
Schoolcraft County
St. Clair County
Washtenaw 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=305.