Carex tribuloides var. sangamonensis
Rhodora 21: 84. 1919.
Leaf-blades (2–) 3–4.5 mm wide at widest. Perigynia ovate-elliptic, 3–4 × 1.1–1.7 mm, 2.2–2.8 (–3) times as long as wide, margin flat, including wing 0.2–0.5 mm wide.
Phenology: Fruiting early–mid summer.
Habitat: Open floodplain forests, moist to wet grasslands, ditches, stream banks, wet thickets
Elevation: 20–600 m
Ala., Ark., Ga., Ill., Ind., Kans., Ky., La., Miss., Mo., Ohio, Okla., S.C., Tenn., Tex., Mexico (Veracruz)
"+timesaslongasinflorescences" is not declared as a valid unit of measurement for this property.