Crataegus calpodendron (Ehrh.) Medik.
Common Name: HAWTHORN
Coefficient of Conservatism: 5
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt Tree

Lowland as well as upland forests and thickets, river banks, roadsides and fencerows, pastures.

The anthers are ordinarily pink, though plants with pale yellow anthers have been collected in the southeastern portion of the Lower Peninsula (and segregated as C. structilis Sarg.). The leaves of C. calpodendron tend to be acute more often than those of C. succulenta, but the more abundant pubescence of the plants will distinguish them from C. coleae and C. brainerdii. Crataegus calpodendron is a late-flowering hawthorn, typically blooming into mid-June in our area.

Locations

Allegan County
Berrien County
Calhoun County
Clinton County
Genesee County
Gratiot County
Ingham County
Ionia County
Jackson County
Kalamazoo County
Kent County
Lake County
Livingston County
Mason County
Midland County
Muskegon County
Newaygo County
Oakland County
Ottawa County
St. Clair County
Van Buren County
Washtenaw County
Wayne County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 12, 2017. http://www.michiganflora.net/species.aspx?id=2437.