Callitriche hermaphroditica L.
Common Name: AUTUMNAL WATER-STARWORT
Coefficient of Conservatism: 9
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Forb
Status: SC

A circumpolar species. Easily overlooked in shallow to deep water of lakes and streams.

The foliage tends to be dark green, and the bases of the leaves, although they may touch each other, are not confluent at the nodes. In C. heterophylla and C. palustris, the foliage is light green (especially when submersed), and the leaf bases are slightly confluent at each node, forming a narrow (not always easily detected) membranous wing across the sides of the stem.

Locations

Alger County
Baraga County
Chippewa County
Iron County
Keweenaw County
    Only on Isle Royale
Luce County
Mackinac County
Ontonagon County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 10, 2017. http://www.michiganflora.net/species.aspx?id=1930.