Persicaria arifolia (L.) Haraldson
Common Name: TEAR-THUMB
Synonym: Polygonum arifolium
Coefficient of Conservatism: 7
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt A-Vine

Polygonum arifolium of Michigan Flora.

Wet ground along streams and lakes and in swamps.


Allegan County
Barry County
Berrien County
Cass County
Kalamazoo County
Kent County
Lapeer County
Lenawee County
Mecosta County
Newaygo County
Oakland County
Ottawa County
St. Clair County
St. Joseph County
Van Buren County
Washtenaw County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. June 29, 2022.