Aster laevis L. × Aster occidentalis (Nutt.) T. & G. var. intermedius Gray
Annotated by Almut G. Jones, 1984. Remarks: University of Illinois (ILL)

Montana: Gallatin County: Wallrock Basin, about 12 miles northwest of Wilsall.
46.085806° N, 110.803976° W,
Uncertainty: 2200 meters.
Wallrock Basin, about 12 miles northwest of Wilsall. Phenology: Flowers & Fruits.

Wilhelm N. Suksdorf 849, Aug 24, 1921
WTU, Accession: 230027, Barcode: WTU-V-051170