Symphyotrichum lanceolatum (Willdenow) G. L. Nesom var. hesperium (A. Gray) G. L. Nesom [family ], Phytologia, 77: 284. 1995
Aster hesperius A. Gray [family COMPOSITAE], in A. Gray et al., Syn. Fl. N. Amer., 1(2): 192. 1884
Aster coerulescens de Candolle var. wootonii (Greene) Wiegand [family COMPOSITAE]
Aster durus Lunell [family COMPOSITAE]
Aster fluvialis Osterhout [family COMPOSITAE]
Aster hesperius var. wootonii Greene [family COMPOSITAE]
Aster lanceolatus Willdenow subsp. hesperius (A. Gray) Semple & Chmielewski [family COMPOSITAE]
Aster lautus Lunell [family COMPOSITAE]
Aster osterhoutii Rydberg [family COMPOSITAE]
Aster wootonii (Greene) Greene [family COMPOSITAE]
Symphyotrichum hesperium (A. Gray) Á. Löve and D. Löve [family ]