Rosa acicularis Lindley ssp. sayi (Schweinitz) W.H. Lewis. Prickly Rose. Phen: May-Jun. Hab: Rocky forests. Dist: NS west to AK, south to MA, NY, MI, nw. IL, IA, SD, NM, AZ, and BC; disjunct in WV (Cronquist 1991; Harmon, Ford-Werntz, & Grafton 2006).
Origin/Endemic status: Native
Taxonomy Comments: Ssp. acicularis is Eurasian and in AK.
Synonymy: = FNA9, GrPl, K1, K3, K4, Mi, NE, NY, WV; = Rosa acicularis Lindl. var. bourgeauiana (Crép.) Crép. – C; < Rosa acicularis Lindl. – G, Il, Joly & Bruneau (2007); > Rosa acicularis Lindl. var. acicularis – F, misapplied in part; > Rosa acicularis Lindl. var. bourgeauiana (Crép.) Crép. – F
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