Juncus gerardii Loisel.
Common Name: BLACK-GRASS
Coefficient of Conservatism: *
Coefficient of Wetness: -5
Wetness Index: OBL
Physiognomy: Ad P-Forb

Ditches, railroad yards, and moist, usually disturbed open ground, and often where salt is applied.

Introduced from the East Coast (if not from Europe) and though first collected in St. Clair Co. in 1911, still quite uncommon; see Stuckey (1980b) for its spread.


Cheboygan County
St. Clair County
Washtenaw County
Wayne 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=1513.