Synonyms
Aster tradescanti var. thyrsoideus (A.Gray) B.Boivin
Aster missouriensis var. thyrsoideus Wiegand
Aster lateriflorus var. thyrsoideus E.Sheld.
Aster ontariensis Wiegand
Aster pantotrichus S.F.Blake
Aster pantotrichus var. thyrsoideus S.F.Blake
Aster diffusus var. thyrsoideus A.Gray