Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Wet sandy, gravelly, or marly shores, limestone pavements, interdunal flats, and edges of cedar thickets, chiefly near the Great Lakes; in rock crevices along Lake Superior. Very local inland, although at a few some inland lakes, mostly near the Great Lakes.
Dry or immature material is sometimes difficult to distinguish from C. aurea and a very few collections appear intermediate, at least in the herbarium. In characteristic individuals of C. garberi the perigynia are more granular-papillose, densely crowded, and strongly overlapping than in C. aurea.