Phacelia purshii Buckley var. boykinii (Small ex A. Gray) F. Levy. Phen: May-Jun. Hab: Moist forests on floodplains and slopes, glades and glade margins. Dist: W. and sc. VA, KY, and s. IN south to wc. GA, AL, and ne. MS.
Origin/Endemic status: Native
Taxonomy Comments: See Levy (2021) for discussion of the taxonomy of P. purshii, P. boykinii, and P. bicknellii.
Synonymy: = Levy (2021); = Phacelia boykinii (A.Gray) Small – S; < Phacelia purshii Buckley – Ar, C, F, G, Il, K1, K3, K4, Mi, NE, Pa, RAB, Tn, Va, W, WV, Constance (1949)