Crataegus douglasii Lindl.
Common Name: BLACK HAWTHORN
Coefficient of Conservatism: 7
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt Tree
Status: SC

Borders of forests, sometimes quite common locally, as in the vicinity of Delaware, Keweenaw Co.; often in rocky savannas and on rock summits; also in thickets on sand dunes and shores. This species is strikingly disjunct from the West.

A tall shrub, our only species of Crataegus with dark blue-black fruit (at full maturity) and hence our easiest to recognize when mature.

Locations

Alger County
Alpena County
Baraga County
Cheboygan County
Chippewa County
Houghton County
Keweenaw County
    Including Isle Royale
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Marquette County
Ontonagon 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=2446.