Urtica dioica L.
Common Name: STINGING NETTLE
Coefficient of Conservatism: 1
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt P-Forb

Urtica dioica B. S. Walters

Swamps and (less often) marshes, moist disturbed forests and thickets, ditches and weedy areas, lake shores and river banks.

Typical European plants are said to be usually if not always dioecious and to have broader ovate and definitely cordate leaf blades, which bear stinging hairs on both surfaces. Such plants are represented in Michigan only by a Houghton Co. collection (Lake Linden; O. A. Farwell 8513 in 1929, BLH, MICH). Most if not all of our plants are monoecious, have narrower, smoother leaves, and are the native subsp. gracilis (Aiton) Selander.

Locations

Alcona County
Alger County
Allegan County
Alpena County
Baraga County
Barry County
Bay County
Benzie County
Berrien County
Calhoun County
Cass County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
Clinton County
Crawford County
Delta County
Dickinson County
Emmet County
Gogebic County
Grand Traverse County
Gratiot County
Hillsdale County
Houghton County
Ingham County
Ionia County
Iosco County
Iron County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Leelanau County
    Including Manitou Islands
Lenawee County
Livingston County
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Macomb County
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Monroe County
Montcalm County
Muskegon County
Newaygo County
Oakland County
Ontonagon County
Presque Isle County
Roscommon County
Saginaw County
Sanilac County
Schoolcraft County
Shiawassee County
St. Clair County
St. Joseph County
Tuscola County
Van Buren County
Washtenaw County
Wayne County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 14, 2017. http://michiganflora.net/species.aspx?id=2759.