Solidago ptarmicoides (Torrey & A. Gray) B. Boivin. Subgenus: Pleiactila. Section: Ptarmicoidei. White Prairie-goldenrod, Upland White Aster. Phen: Aug-Oct. Hab: Prairie-like barrens over mafic, ultramafic, or calcareous rock, serpentine woodlands, prairies. Dist: VT and NY west to SK, south to e. TN (Rhea and Roane counties in the Ridge and Valley) (Chester, Wofford, & Kral 1997), nw. GA (Floyd County), AR, and CO; disjunct in nc. NC (Granville County, and historically in Rowan County [Small & Heller 1892]) and nc. SC (York County).

Origin/Endemic status: Native

Taxonomy Comments: A diploid species, 2n=18.

Synonymy: = Ar, C, FNA20, GrPl, K3, K4, Mi, Mo2, NY, Oh3, SE1, Tn, W, Brouillet & Semple (1981); = Aster ptarmicoides Torr. & A.Gray – F, G, S; = n/a – RAB; = Oligoneuron album (Nutt.) G.L.Nesom – Il, K1, NE, Nesom (1993b); = Solidago asteroides Semple, superfluous name; = Unamia alba (Nutt.) Rydb.; > Aster ptarmicoides Torr. & A.Gray var. georgianus A.Gray; > Aster ptarmicoides Torr. & A.Gray var. ptarmicoides

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Heliophily: 9