Carex aggregata Mackenzie. Section: [26d] Section 4.0 Phaestoglochin. Phen: May-Jun. Hab: Mesic to submesic forests and woodlands, fields, roadsides, other disturbed areas, especially over calcareous substrates. Dist: NY, ON, MN, and SD, south to nc. and nw. NC, TN, and OK.
ID notes: Other useful characters include: culms relatively smooth; pistillate scales sharp-pointed, the tip reaching to about the base of the perigynium; and perigynia nerveless.
Origin/Endemic status: Native
Synonymy: = Ar, F, FNA23, GrPl, Il, K1, K3, K4, Mi, Mo1, NY, Pa, Tn, Va, Mackenzie (1931-1935); = Carex sparganioides Muhl. ex Willd. var. aggregata (Mack.) Gleason – C, G; < Carex sparganioides Muhl. ex Willd. – RAB