Lysimachia ×producta (A. Gray) Fernald. Phen: May-Jul; Aug-Oct. Hab: Wet barrens in oak flatwoods, other moist areas. Dist: MT, QC, ON, and WI south to NC and TN.
Origin/Endemic status: Native
Taxonomy Comments: This is a fertile hybrid of L. quadrifolia and L. terrestris, sometimes occurring in the apparent absence of one or both parents.
Synonymy: = C, F, FNA8, Il, K1, K3, K4, NE, NY, Pa, RAB, Tn; = Lysimachia producta (A.Gray) Fernald – G, S