Botrychium tenebrosum A.A. Eaton
Synonym: Botrychium simplex
Coefficient of Conservatism: 7
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt Fern

Many of our collections, especially from southern Michigan, are from cedar swamps, or moist to wet, often mixed woods, often on mossy hummocks or even mossy logs and stumps, where it is typically the only species of Botrychium. It also occurs, though apparently less commonly collected, in moist open meadows, or sometimes drier, sandy open sites. 

Occurring esentially throughout the State, this is a small, slender, difficult to see species that is probably overlooked.


Alcona County
Arenac County
Baraga County
Berrien County
Cheboygan County
Clare County
Delta County
Houghton County
Iosco County
Keweenaw County
Leelanau County
Livingston County
Luce County
Manistee County
Marquette County
Mason County
Mecosta County
Midland County
Monroe County
Montmorency County
Oakland County
Ontonagon County
Presque Isle County
Saginaw County
Schoolcraft County
St. Clair County
Washtenaw County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 7, 2022.