Trillium cernuum L.
Coefficient of Conservatism: 5
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt P-Forb

Trillium cernuum B. S. Slaughter

Coniferous swamps and borders of bogs, moist or swampy mixed forests, especially where there is birch, thickets along streams; less often in rich hardwoods, such as beech-maple forests, and floodplain forests.

This is the common nodding white trillium throughout Michigan; only in the southern half of the Lower Peninsula is T. flexipes more frequent. In one small area of the eastern Upper Peninsula, plants occur with color variation from white through maroon (f. tangerae Wherry), similar to the color variation noted under T. flexipes. This color variation seems suspiciously like the result of hybridization with T. erectum, which, even more suspiciously, has been found in the Upper Peninsula only in this area.


Alcona County
Alger County
Alpena County
Antrim County
Arenac County
Baraga County
Barry County
Bay County
Calhoun County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
Crawford County
Delta County
Dickinson County
Emmet County
Genesee County
Gogebic County
Grand Traverse County
Gratiot County
Houghton County
Huron County
Ingham County
Iosco County
Iron County
Isabella County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Lapeer County
Leelanau County
    Including Fox Islands
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Macomb County
Marquette County
Mason County
Menominee County
Midland County
Missaukee County
Montcalm County
Montmorency County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Ontonagon County
Otsego County
Ottawa County
Roscommon County
Saginaw County
Schoolcraft County
Shiawassee County
Washtenaw County
Wayne County
Wexford County


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