| 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 |
| Symphyotrichum purpurascens (Sch. Bip.) G.L. Nesom, 2018 |
| Symphyotrichum schaffneri (Sch. Bip. ex S.D. Sundb. & A.G. Jones) G.L. Nesom, 1994 |
| Symphyotrichum spathulatum (Lindl.) G.L. Nesom, 1994 |
| Symphyotrichum squamatum (Spreng.) G.L. Nesom, 1995 |
| Symphyotrichum subulatum (Michx.) G.L. Nesom, 1995 |
| Symphyotrichum trilineatum (Sch. Bip. ex Klatt) G.L. Nesom, 1995 |
| Symphyotrichum turneri (S.D. Sundb. & A.G. Jones) G.L. Nesom, 2018 |
| Syncephalantha Bartl., 1836 |
| Syncephalantha decipiens Bartl., 1836 |
| Syncephalantha macrophylla Klatt, 1889 |