| Symphyotrichum falcatum var. commutatum (Torr. & A. Gray) G.L. Nesom, 1995 |
| Symphyotrichum foliaceum (Lindl. ex DC.) G.L. Nesom, 1995 |
| Symphyotrichum frondosum (Nutt.) G.L. Nesom, 1995 |
| Symphyotrichum gypsophilum (B.L. Turner) G.L. Nesom, 1995 |
| Symphyotrichum hesperium (A. Gray) Á. Löve & D. Löve, 1982 |
| Symphyotrichum hintonii (G.L. Nesom) G.L. Nesom, 1995 |
| Symphyotrichum laeve (L.) Á. Löve & D. Löve, 1982 |
| Symphyotrichum lanceolatum (Willd.) G.L. Nesom, 1994 |
| Symphyotrichum lanceolatum var. hesperium (A. Gray) G.L. Nesom, 1994 |
| Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve, 1982 |
| Symphyotrichum leone (Britton) G.L. Nesom, 1994 |
| Symphyotrichum mexicanum Dahal, 2023 |
| Symphyotrichum moranense (Kunth) G.L. Nesom, 1994 |
| Symphyotrichum moranense var. moranense (Kunth) G.L. Nesom, 1994 |
| Symphyotrichum moranense var. turneri (S.D. Sundb. & A.G. Jones) G.L. Nesom, 1994 |
| Symphyotrichum novi-belgii (L.) G.L. Nesom, 1994 |
| Symphyotrichum oblongifolium (Nutt.) G.L. Nesom, 1994 |
| Symphyotrichum oolentangiense (Riddell) G.L. Nesom, 1994 |
| Symphyotrichum potosinum (A. Gray) G.L. Nesom, 1995 |
| Symphyotrichum praealtum G.L. Nesom, 1995 |