Asclepias tuberosa L.
Common Name: BUTTERFLY-WEED
Coefficient of Conservatism: 5
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Dry barrens and savannas with oak, sassafras, and/or pines, including jack pine plains; sandy roadsides and fields.

The flowers are usually some shade of orange, but may be clear yellow or bicolored. As our only milkless milkweed, with alternate leaves besides, this is a readily recognized plant. It develops a massive, almost woody tuberous root, from which numerous ± lax stems may arise. The flowers are indeed very attractive to butterflies and other insects.

Locations

Alcona County
Allegan County
Alpena County
Barry County
Bay County
Benzie County
Berrien County
Branch County
Calhoun County
Cass County
Cheboygan County
Clinton County
Crawford County
Dickinson County
Eaton County
Genesee County
Grand Traverse County
Gratiot County
Hillsdale County
Huron County
Ingham County
Ionia County
Iosco County
Isabella County
Jackson County
Kalamazoo County
Kent County
Lake County
Lapeer County
Leelanau County
Lenawee County
Livingston County
Macomb County
Manistee County
Mason County
Mecosta County
Monroe County
Montcalm County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Oceana County
Oscoda County
Ottawa County
Presque Isle County
Saginaw County
St. Clair County
St. Joseph County
Van Buren County
Washtenaw County
Wayne County
Wexford County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 15, 2017. http://michiganflora.net/species.aspx?id=163.