Eleocharis rostellata Torr.
Common Name: SPIKE-RUSH
Coefficient of Conservatism: 10
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Nt P-Sedge

Eleocharis rostellata rooting culms A. A. Reznicek rooting culms

Fens, calcareous shores and exposed marly flats.

The culms are flattened, and the vegetative culms elongate greatly as the season progresses, sometimes to 1.5-2 m long, and typically arching and rooting at the tips. The resulting loops may catch the foot of the collector, calling his attention to a plant he might otherwise overlook. See also comments under E. melanocarpa and E. tricostata.


Allegan County
Antrim County
Barry County
Bay County
Benzie County
Calhoun County
Cass County
Charlevoix County
Cheboygan County
Chippewa County
    Only on Drummond Island
Emmet County
Grand Traverse County
Gratiot County
Hillsdale County
Huron County
Ionia County
Jackson County
Kalamazoo County
Kent County
Lake County
Lapeer County
Leelanau County
    Including Fox Islands
Lenawee County
Livingston County
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Macomb County
Manistee County
Oakland County
Ottawa County
Presque Isle County
Tuscola 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. https://michiganflora.net/species.aspx?id=1121.