Euphorbia glyptosperma Engelm.
Common Name: RIDGE-SEEDED SPURGE
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad A-Forb

Railroads, roadsides (sandy shoulders), gravel pits, and other dry raw sites; usually considered native but the earliest Michigan collections seen are from 1892 (Dickinson Co.). Our commonest prostrate mat-forming species of disturbed ground in most of Michigan, except the lower half the the Lower Peninsula, where E. maculata is much more frequent.

Locations

Alger County
Alpena County
Antrim County
Arenac County
Baraga County
Barry County
Benzie County
Berrien County
Cass County
Cheboygan County
Chippewa County
Clare County
Crawford County
Delta County
Dickinson County
Emmet County
Gogebic County
Grand Traverse County
Houghton County
Huron County
Ingham County
Iosco County
Iron County
Isabella County
Kalamazoo County
Kalkaska County
Keweenaw County
Lapeer County
Leelanau County
    Including Manitou Islands
Lenawee County
Luce County
Macomb County
Marquette County
Mecosta County
Menominee County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Ogemaw County
Ontonagon County
Osceola County
Oscoda County
Otsego County
Ottawa County
Presque Isle County
Schoolcraft County
Shiawassee County
Washtenaw County
Wayne County
Wexford 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=1254.