Melampyrum lineare Desrousseaux. Phen: May-Jul; Aug-Sep. Hab: Dry rocky or sandy soils, including ridgetop woodlands, heath balds, sandy areas in the Coastal Plain from e. VA northwards, and in thin soils around rock outcrops (especially on granitic domes in the Blue Ridge south of the Asheville Basin). Dist: NL (Labrador), QC west to BC, south to e. VA, w. NC, n. GA, c. TN, n. MI, c. MN, MB, SK, w. MT, n. ID, and nw. WA.
Origin/Endemic status: Native
Taxonomy Comments: Varieties have sometimes been recognized (see synonymy), but Weeks (2017a) and Oldham & Weeks (2017) found that the recognition of infraspecific taxa was not warranted.
Synonymy: = FNA17, K4, Mi, NE, NY, RAB, S, W, Oldham & Weeks (2017), Weeks (2017a) in Weakley et al (2017); > Melampyrum lineare Desr. var. americanum (Michx.) Beauverd – C, F, G, Pa, Va; > Melampyrum lineare Desr. var. latifolium Barton – C, F, G, Il, K1, K3, Tn, Va, WV, Pennell (1935); > Melampyrum lineare Desr. var. lineare – F, K1, K3, WV; > Melampyrum lineare Desr. var. pectinatum (Pennell) Fernald – C, F, G, K1, K3, Pa, Va, Pennell (1935); > Melampyrum lineare Desr. var. typicum – Pennell (1935)