Sibbaldiopsis tridentata (Aiton) Rydb.
Synonym: Potentilla tridentata
Coefficient of Conservatism: 10
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Nt P-Forb

Potentilla tridentata of Michigan Flora.

Open sandy ground, such as old dune ridges and glacial outwash plains; dry savanna of jack pine and oak; rock shores, outcrops, and summits. Locally abundant along Lake Superior from Whitefish Point westward, typically with scattered jack pine, blueberries and other ericads, Avenella flexuosa, and Hudsonia tomentosa but thriving in mowed lawns (as at Coast Guard installations); reappearing in the jack pine plains of the northern Lower Peninsula. The Emmet Co. record is based on plants presumably adventive along a railroad in 1920.


Alcona County
Alger County
Arenac County
Baraga County
Charlevoix County
    Only on Beaver Island
Chippewa County
Clare County
Crawford County
Delta County
Emmet County
Gogebic County
Houghton County
Iosco County
Kalkaska County
Keweenaw County
    Including Isle Royale
Lake County
Luce County
Mackinac County
Marquette County
Missaukee County
Ogemaw County
Ontonagon County
Oscoda County
Otsego County
Roscommon County
Schoolcraft County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. October 27, 2020.