Myriophyllum tenellum Bigelow
Coefficient of Conservatism: 10
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Forb

Myriophyllum tenellum N. Martineau

One of the most widespread of our interesting aquatics of softwater lakes and bays. Often forms dense turfs in deep water, the essentially leafless stems arising singly along buried rhizomes. In shallow water, at the sandy to mucky edges of lakes and ponds, the emersed tips produce typical Myriophyllum flowers. Flowering stems can attain a height of 30 cm or more, but they are usually not over half that tall.


Alger County
Allegan County
Baraga County
Barry County
Benzie County
Cass County
Charlevoix County
    Only on Beaver Island
Chippewa County
Clare County
Delta County
Gogebic County
Houghton County
Iron County
Kalamazoo County
Kent County
Keweenaw County
    Including Isle Royale
Lake County
Leelanau County
    Only on Manitou Islands
Luce County
Marquette County
Mecosta County
Montcalm County
Newaygo County
Ontonagon County
Otsego County
Schoolcraft County
Van Buren County
Wexford County


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