Swida rugosa (Lamarck) Rydberg. Phen: May-Jul; Aug-Oct. Hab: At high elevations, usually on talus (greenstone, quartzite, sandstone, limestone) in woodlands. Dist: QC to MB, south to NJ, PA, w. VA, e. TN (Tennessee Flora Committee 2015), OH, IN, IL, and IA.
Origin/Endemic status: Native
Synonymy: = NE; = Cornus rugosa Lam. – C, F, FNA12, G, Il, K1, K3, K4, Mi, NY, Pa, Tn, Va, W, WV