Elymus lanceolatus (Scribn. & J. G. Sm.) Gould
Common Name: WHEAT GRASS
Synonym: Agropyron dasystachyum
Coefficient of Conservatism: 10
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Nt P-Grass

Elymus lanceolatus subsp. psammophilus A. A. Reznicek subsp. psammophilus

Agropyron dasystachyum of Michigan Flora.

Restricted to sandy shores and dunes of the Great Lakes; frequent especially on the northern shores of Lakes Michigan and Huron. Known from Lake Superior only from two old Farwell collections (1890 and 1895), but there do not seem to be any reasons to reject these. Though the collections lacked good locality data, they are apparently from Eagle Harbor, based on other specimens Farwell collected on the same days with similar habitat wording.

A conspicuous blue-green glaucous grass. The lemmas are usually nearly or quite awnless, although some plants from all three of the Great Lakes on which it occurs have prominently awned lemmas. Our plants from the sandy shores of the Great Lakes are a disjunct population constituting the endemic subsp. psammophilus (Gillett & Senn) Á. Löve, which has more villous lemmas, more glaucous foliage and less attenuate glumes than plants from western North America.

Locations

Alcona County
Alpena County
Antrim County
Benzie County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
    Including Drummond Island
Delta County
Emmet County
Grand Traverse County
Huron County
Iosco County
Keweenaw County
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Manistee County
Menominee County
Presque Isle County
Schoolcraft County
St. Clair County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. November 26, 2022. https://www.michiganflora.net/species.aspx?id=2099.