Alisma subcordatum Raf.
Synonym: Alisma plantago-aquatica
Coefficient of Conservatism: 1
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Forb

Alisma subcordatum A. A. Reznicek

River banks, lake and pond shores, wet fields and ditches, marshes, bog margins.

Flowers are only up to ca. 3–6 mm in diameter, though thery rarely press well. The sepals are mostly 1.5–2.6 mm long. As a general rule, the inflorescence of A. subcordatum is more diffusely branched and with more flowers than the larger-flowered A. triviale.


Alpena County
Barry County
Bay County
Berrien County
Branch County
Calhoun County
Cass County
Cheboygan County
Clinton County
Dickinson County
Gratiot County
Ingham County
Jackson County
Kalamazoo County
Kent County
Lapeer County
Leelanau County
Lenawee County
Livingston County
Manistee County
Mason County
Mecosta County
Monroe County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ottawa County
Roscommon County
Shiawassee County
St. Clair County
Tuscola County
Washtenaw County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. November 28, 2022.