Galium trifidum L.
Coefficient of Conservatism: 6
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt P-Forb

Shores of lakes and ponds, river banks, fens, swamps, ditches, hummocks in marshes.

The very slender, even filiform, arcuate, scabrous (seen under a good lens) pedicels, make this species rather easy to recognize except when very young. The leaves are usually more linear than in G. tinctorium, but there is not enough consistency in shape (or scabrousness) for identification of vegetative material. The little retrorse barbules that make the leaf margins scabrous are short-conical, broadly triangular in aspect, like miniature rose prickles, and make this, G. tinctorium, and G. brevipes, rather easy to separate from G. obtusum and G. labradoricum, which have longer, straighter, and more slender bristly hairs along the leaf margins (as well as bearded nodes).


Alcona County
Allegan County
Antrim County
Baraga County
Benzie County
Berrien County
Branch County
Calhoun County
Cheboygan County
Chippewa County
    Including Drummond Island
Clinton County
Delta County
Emmet County
Gogebic County
Gratiot County
Hillsdale County
Ingham County
Iosco County
Iron County
Jackson County
Kalamazoo County
Kent County
Keweenaw County
    Only on Isle Royale
Lake County
Leelanau County
Lenawee County
Livingston County
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Macomb County
Manistee County
Menominee County
Monroe County
Montcalm County
Montmorency County
Newaygo County
Oakland County
Presque Isle County
Roscommon County
Schoolcraft County
St. Clair County
St. Joseph County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. November 26, 2022.