Carex heliophila Mackenzie. Section: [26bbb] Section 39 Acrocystis. Phen: Apr-Jun. Hab: Dry to mesic upland forests, sandy, loamy, or loess prairies. Dist: ON west to BC, south to MI, IN, IL, MO, OK, NM, and WA.
Origin/Endemic status: Native
Synonymy: = GrPl, Il, Mackenzie (1931-1935); = Carex inops ssp. heliophila – FNA23, K3, K4, Mi, Mo1; = Carex pensylvanica var. digyna Boeckeler – C