Linum medium (Planchon) Britton. Phen: Apr-Jul; Jun-Aug. Hab: Lake (sand) plains. Dist: ON and (reportedly) nw. PA (Presque Isle).
Origin/Endemic status: Native
Taxonomy Comments: A tetraploid taxon centered in s. ON (some previous reports from PA and OH are incorrect).
Synonymy: = Linum medium (Planch.) Britton var. medium – C, F, FNA12, K1, K3, K4, Rogers (1984); < Linum medium (Planch.) Britton – G; >< Linum medium (Planch.) Britton var. medium – Pa