Carex willdenowii Schkuhr ex Willdenow. Section: [26kkk] Section 44 Phyllostachyae. Willdenow’s Sedge. Phen: May-Jun. Hab: Calcareous mesic forests, but also in more acidic dry-mesic upland oak forests. Dist: MA, VT, NY, s. ON, and c. IN, south to nc. SC, n. AL, and s. IL; disjunct in c. AR.

Origin/Endemic status: Native

Taxonomy Comments: Naczi (1999b) reported chromosome numbers of n = 31, 39.

Synonymy: = Ar, FNA23, Il, K1, K3, K4, NE, NY, Tn, Va; < Carex willdenovii – C, G, Mo1, Pa, S, Mackenzie (1931-1935), orthographic variant; < Carex willdenowii Schkuhr ex Willd. – F, RAB, W

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