Cypripedium acaule Aiton
Common Name: MOCCASIN FLOWER, PINK LADY-SLIPPER, STEMLESS LADY-SLIPPER
Coefficient of Conservatism: 5
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt P-Forb

Sandy, dry forests under red and jack pine, mixed oak and pine, or aspens; also in moist to wet ground, especially on hummocks in sphagnum bogs and under cedar, tamarack, or spruce in coniferous swamps, always in acidic soils.

Our commonest lady-slipper in much of the state, this occurs in a diversity of acid soil habitats, but mostly in boggy sites in southernmost Michigan. It is uncommon in limestone districts.

Locations

Alcona County
Alger County
Allegan County
Antrim County
Arenac County
Baraga County
Barry County
Bay County
Benzie County
Berrien County
Calhoun County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
Clare County
Clinton County
Crawford County
Delta County
Dickinson County
Eaton County
Emmet 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
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Leelanau County
Lenawee County
Livingston County
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Missaukee County
Montcalm County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Ontonagon County
Oscoda County
Otsego County
Ottawa County
Presque Isle County
Roscommon County
Saginaw County
Schoolcraft County
St. Clair County
St. Joseph County
Tuscola County
Van Buren County
Washtenaw County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 12, 2017. http://michiganflora.net/species.aspx?id=1803.