[Aster ascendens var. fremontii Torr. & A. Gray, moreAster fremontii var. parishii A. Gray, Aster occidentalis var. delectabilis (H.M. Hall) Ferris, Aster occidentalis var. fremontii (Torr. & A. Gray) A.G. Jones, Aster occidentalis var. occidentalis (Nutt.) Torr. & Gray, Aster occidentalis var. parishii (A. Gray) Ferris, Symphyotrichum spathulatum var. fremontii (Torr. & A. Gray) G.L. Nesom, Tripolium occidentale Nutt.]