Bidens frondosa L.
Common Name: COMMON BEGGAR-TICKS
Coefficient of Conservatism: 1
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt A-Forb

Moist ground of shores (sandy, gravelly, rocky), swamps (cedar, black ash), depressions in forests, stream and river banks, ponds, fens; more weedy than most other species of Bidens, in wet disturbed sites, clearings, trails, alleys, barnyards, moist fields, and railroad embankments.

In f. anomala (Fernald) Fernald, the awns are antrorsely barbed (Emmet Co., Drummond Is.). Depauperate plants may resemble B. discoidea, but differ in the awns and at least sparsely ciliate phyllaries.

Locations

Alcona County
Allegan County
Alpena County
Baraga County
Barry County
Benzie County
Berrien County
Cass County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
    Including Drummond Island
Clinton County
Delta County
Emmet County
Gladwin County
Gogebic County
Grand Traverse County
Hillsdale County
Houghton County
Ingham County
Iosco County
Iron County
Jackson County
Kalamazoo County
Kalkaska County
Kent County
Keweenaw County
Lake County
Leelanau County
Lenawee County
Livingston 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
Ogemaw County
Ontonagon County
Ottawa County
Presque Isle County
Sanilac 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=249.