Tanacetum vulgare L.
Common Name: COMMON TANSY, GARDEN TANSY
Coefficient of Conservatism: *
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Ad P-Forb

A Eurasian species, much cultivated and widely naturalized, forming large colonies from strong rhizomes. Roadsides, fields, meadows, ditches, shores; vacant lots, farmyards, old building sites, fill, dumps, and other disturbed places; sometimes spreading into open, disturbed forests and clearings, but not doing well in shade. First collected in 1862 in Washtenaw Co. and widespread by the 1890’s.

Like other aromatic plants, this species has been used medicinally. The leaves are ± densely glandular-punctate as well as glabrous and less finely divided than in T. bipinnatum. Our escapes do include a few occurrences of the Fernleaf Tansy, forma crispum (L.) Hayek.



Locations

Alcona County
Alger County
Alpena County
Baraga County
Bay County
Benzie County
Berrien County
Calhoun County
Charlevoix County
    Only on Beaver Island
Cheboygan County
Chippewa County
    Including Drummond Island
Crawford County
Delta County
Dickinson County
Emmet County
Gladwin County
Grand Traverse County
Gratiot County
Houghton County
Huron County
Ingham County
Iosco County
Iron County
Isabella County
Kalamazoo County
Kent County
Keweenaw County
    Including Isle Royale
Lapeer County
Leelanau County
Lenawee County
Mackinac County
Macomb County
Marquette County
Mason County
Mecosta County
Menominee County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ontonagon County
Otsego County
Presque Isle County
Roscommon County
Schoolcraft County
St. Clair County
St. Joseph 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 11, 2017. http://www.michiganflora.net/species.aspx?id=501.