Coefficient of Conservatism:
Coefficient of Wetness:
Marshy ground, wet shores and thickets, cedar and tamarack swamps, peatlands, swamps and pond borders. More to be expected in peaty, mucky places than in sandy ones.
Galium tinctorium is larger in some or all respects than G. brevipes, but it is not always easy to separate the two. A very few collections with some pedicels arcuate but (unlike G. trifidum) smooth, up to twice as long as in G. brevipes, are tentatively referred to G. tinctorium. The larger corolla and fruit (insofar as present) on these specimens would rule out G. brevipes, and the pedicels are less slender than in G. trifidum.