Spiranthes cernua (L.) Rich.
Common Name: NODDING LADIES'-TRESSES
Coefficient of Conservatism: 4
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt P-Forb

Open moist places generally and often striking because of the late blooming season when little else may be in flower among the grasses and sedges. Shores, ditches, grassy roadsides and openings, sandy excavations, meadows, beach pools and interdunal swales, shaded rock ledges northward; often in sandy soil, sometimes marly or peaty, at bog borders. Tends to grow in drier sites than S. romanzoffiana. This is our commonest species of Spiranthes; Michigan plants at least have pure white flowers that contrast with the creamier flowers of S. ochroleuca and S. casei. Spiranthes cernua blooms from August into mid-September, though stragglers occasionally bloom later.

Locations

Alcona County
Allegan County
Alpena County
Antrim County
Arenac County
Baraga County
Barry County
Bay County
Benzie County
Berrien County
Branch County
Cass County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
Clare County
Crawford County
Delta County
Eaton County
Emmet County
Genesee County
Gladwin County
Gogebic County
Grand Traverse County
Gratiot County
Hillsdale County
Houghton County
Huron County
Ingham County
Ionia County
Iosco County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Leelanau County
    Including Fox Islands
Lenawee County
Livingston County
Mackinac County
Macomb County
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Missaukee County
Monroe County
Montcalm County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Osceola County
Oscoda County
Otsego County
Ottawa County
Presque Isle County
Roscommon County
Saginaw County
Schoolcraft County
St. Clair 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 10, 2017. http://www.michiganflora.net/species.aspx?id=1840.