Carex sangamonensis (Clokey) Mohlenbrock. Section: [26q] Section 12 Ovales. Phen: May-Jun. Hab: Bottomland forests, marshes. Dist: OH, IL, and KS, south to SC, AL, LA, and TX.
Origin/Endemic status: Native
Taxonomy Comments: Judged to perhaps warrant specific rank (Tennessee Flora Committee 2015), as treated here.
Synonymy: = Il, K4; = Carex tribuloides Wahlenb. var. sangamonensis Clokey – Ar, ETx1, FNA23, G, K1, K3, Tn, Va; < Carex tribuloides Wahlenb. – C, F, GW1, Mo1, NcTx, RAB, W