Publication: Sp. Pl. 4(1): 282. 1805.
selected vouchers: WTU
Notes: FNA does not list for WA but several vouchers exist at WTU and probably other herbaria.
FNA23: "Carex hystericina is widespread and common, even weedy, in regions with calcareous substrates. It hybridizes uncommonly with C. pseudocyperus and more rarely with C. comosa, C. schweinitzii, C. utriculata, and C. vesicaria. Hybrids are sterile and intermediate in morphology. The species epithet is often, but not originally, spelled "hystricina."