Alisma triviale Pursh
Synonym: Alisma plantago-aquatica
Coefficient of Conservatism: 1
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Forb

Alisma triviale B. S. Walters

Shallow water and wet ground generally: marshes, borders of streams and ponds, ditches, muddy banks, floodplains, wet thickets, older parts of bogs, etc.

Our common species throughout the state. Petals are longer, and flowers thus broader (ca. 6–13 mm in diameter), than in A. subcordatum, but they preserve very poorly in specimens. The sepals are mostly 2.5–4 mm long.




Alcona County
Allegan County
Alpena County
Baraga County
Barry County
Bay County
Benzie County
Berrien County
Branch County
Calhoun County
Cheboygan County
Chippewa County
Crawford County
Emmet County
Gogebic County
Gratiot County
Hillsdale County
Houghton County
Ingham County
Ionia County
Isabella County
Kalamazoo County
Kent County
Keweenaw County
Lake County
Leelanau County
Lenawee County
Macomb County
Manistee County
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Missaukee County
Monroe County
Montcalm County
Muskegon County
Newaygo County
Oakland County
Ontonagon County
Ottawa County
Presque Isle County
Roscommon County
Saginaw County
Sanilac County
Schoolcraft County
Shiawassee County
St. Clair County
Tuscola County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. May 19, 2022.