Potentilla simplex Michx.
Common Name: OLD-FIELD CINQUEFOIL, COMMON CINQUEFOIL
Coefficient of Conservatism: 2
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Nt P-Forb

Usually in dry open sandy forests, with oak, hickory, aspen, sassafras, and/or jack pine; fields, roadsides, and sandy barren ground; also in moist thickets and deciduous forests, and on rocky ledges.

This is our commonest species with solitary flowers and palmately compound leaves but is very similar to the much less common P. canadensis L. Typically in P. simplex the stem is initially ± erect, ca. 1 mm thick or thicker. The stem as it elongates becomes ± arching and essentially stoloniferous. Potentilla canadensis is a more delicate plant, the stems less than 1 mm thick (often ca. 0.5 mm) and ± prostrate from the beginning. The cauline (stolon) leaves are less than half grown at flowering time in P. canadensis, as it flowers early, sometimes before the stem elongates.

Locations

Alcona County
Allegan County
Alpena County
Antrim County
Baraga County
Barry County
Bay County
Berrien County
Branch County
Calhoun County
Cass County
Charlevoix County
Cheboygan County
Chippewa County
Clare County
Clinton County
Crawford County
Delta County
Dickinson County
Eaton County
Genesee County
Gogebic County
Grand Traverse County
Gratiot County
Hillsdale County
Houghton County
Huron County
Ingham County
Ionia County
Iosco County
Iron County
Isabella County
Jackson County
Kalamazoo County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Lapeer County
Leelanau County
    Including Manitou Islands
Lenawee County
Livingston County
Macomb County
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Monroe County
Montcalm County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Ontonagon County
Osceola County
Oscoda County
Ottawa County
Roscommon County
Saginaw County
Sanilac County
Schoolcraft County
St. Clair County
St. Joseph County
Tuscola 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 15, 2017. http://michiganflora.net/species.aspx?id=2513.