Trillium flexipes Raf.
Coefficient of Conservatism: 7
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt P-Forb

Trillium flexipes Ann Arbor Natural Area Preservation

Rich beech-maple, oak-hickory, mixed swamp and floodplain forests.

The very short filaments and long anthers usually make this species easily recognizable; the filaments are rarely as long as 4 mm. The petals may be white [f. flexipes], maroon [f. walpolei (Farw.) Fernald], intermediate in shade, or reddish basally and white terminally. Different color forms may be found growing together. The odor may apparently be either sweet or foul; this varies somewhat with the age of the flowers.

Forms with petal colors other than white are suspected to represent hybrid swarms derived from crossing with  T. erectum.


Berrien County
Branch County
Calhoun County
Cass County
Eaton County
Hillsdale County
Ingham County
Ionia County
Jackson County
Kalamazoo County
Kent County
Leelanau County
    Only on Fox Islands
    Including Manitou Islands
Lenawee County
Mason County
Monroe County
Oakland County
Oceana County
Ottawa County
St. Joseph County
Van Buren County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. November 29, 2022.