Linnaea borealis L.
Common Name: TWINFLOWER
Coefficient of Conservatism: 6
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt P-Forb

Forests and thickets, neither the wettest nor the driest but ranging from cedar swamps to aspen forests, usually with conifers (most often cedar); especially common at borders (as along shores or on old dunes), openings, and clearings; very local southwards in the state, often abundant northward.

Plants of Eurasia and parts of Alaska represent the subsp. borealis or var. borealis; ours may be called var. longiflora Torr. or subsp. longiflora (Torr.) Hultén.

Rarely the flowers are solitary or more than two. Occasional late-blooming individuals (September) tend to have an extra flower on the peduncle, below the usual pair.

Locations

Alcona County
Alger County
Alpena County
Antrim County
Arenac County
Baraga County
Benzie County
Berrien County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
    Including Drummond Island
Clare County
Crawford County
Delta County
Dickinson County
Emmet County
Gladwin County
Gogebic County
Grand Traverse County
Houghton County
Ingham County
Iosco County
Iron County
Isabella County
Jackson County
Kalamazoo County
Kalkaska County
Keweenaw County
    Including Isle Royale
Lake County
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Macomb County
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Missaukee County
Montcalm County
Montmorency County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Ontonagon County
Oscoda County
Otsego County
Ottawa County
Presque Isle County
Roscommon County
Schoolcraft County
St. Clair County
Tuscola County
Washtenaw County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 12, 2017. http://michiganflora.net/species.aspx?id=1640.