Carex tonsa (Fernald) E.P. Bicknell. Section: [26bbb] Section 39 Acrocystis. Shaved Sedge. Phen: Apr-Jul. Hab: Dry rock outcrops, xeric disturbed areas, old fields. Dist: QC west to AB, south to VA, WV (Vanderhorst et al. 2013), nw. SC, n. GA, e. TN, IN, and WI.

Origin/Endemic status: Native

Taxonomy Comments: See C. umbellata for discussion.

Synonymy: = F, G, Il, K4, NY, Tn, Va, Mackenzie (1931-1935), Sorrie et al (2011); = Carex tonsa (Fernald) E.P.Bicknell var. tonsa – FNA23, K1, K3, Mi, Mo1, NE, Pa; < Carex umbellata Schkuhr ex Willd. – C, RAB, W

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