.
| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|
| Asteraceae | Symphyotrichum praealtum var. angustior | Willow Aster, Veiny Lined Aster | Fen-like calcareous wetlands. | ME south to NC (?) and ne. TN. Abrams Creek, Frederick County, VA. Also reported for NC by Kartesz (1999). | 
|
| Asteraceae | Symphyotrichum praealtum var. nebraskense | Nebraska Aster | Bottomlands, other moist areas. | NE, KS, and OK east to MO, AR, and LA. | 
|
| Asteraceae | Symphyotrichum praealtum var. praealtum | Net-veined Aster, Willowleaf Aster | Moist forests over limestone, wooded fens (with Acer rubrum and Fraxinus nigra), calcareous clay prairies. | NY, MN, and SD south to Panhandle FL, e. TX, and Mexico (CHH, COA, NLE, TAM). Reported for Giles County, VA. | 
|
| Asteraceae | Symphyotrichum praealtum var. subasper | Rough Willowleaf Aster | Loess prairies and woodlands, bottomlands, other moist habitats. | KY, IN, IL, MO, and OK south to AL and TX. | 
|