Synonyms
Aster hesperius A.Gray
Aster coerulescens var. wootonii Wiegand
Symphyotrichum lanceolatum subsp. hesperium (A.Gray) G.L.Nesom
Aster hesperius var. laetevirens (Greene) Cronquist
Aster hesperius var. wootonii Greene
Aster wootonii Greene
Aster durus Lunell
Aster lanceolatus subsp. hesperius (A.Gray) Semple & Chmiel.
Aster osterhoutii Rydb.
Aster laetevirens Greene
Aster lautus var. prionoides Lunell
Aster lautus Lunell
Aster coerulescens var. laetevirens (Greene) Cronquist
Aster foliaceus var. hesperius (A.Gray) Jeps.
Aster fluvialis Osterh.
Symphyotrichum hesperium (A.Gray) Á.Löve & D.Löve