Coefficient of Conservatism:
8
Coefficient of Wetness:
-3
Wetness Index:
FACW
Physiognomy:
Nt P-Sedge
A. A. Reznicek
Wet sandy, gravelly, or marly shores, limestone pavements, interdunal flats, and edges of cedar thickets, chiefly near the Great Lakes although at some inland lakes; in rock crevices along Lake Superior.
Dry or immature material is sometimes difficult to distinguish from C. aurea and a few collections appear intermediate. In characteristic individuals of C. garberi the perigynia are more granular-papillose, densely crowded, and strongly overlapping than in C. aurea.