| Name | Aster novi-belgii subsp. tardiflorus (Linnaeus) A. G. Jones | 
| Authorship | (Linnaeus) A. G. Jones | 
| Rank | Subspecies | 
| Placed in | Aster novi-belgii Linnaeus | 
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Aster novi-belgii subsp. tardiflorus (Linnaeus) A. G. Jones | 
| Identification made in | 1981 (7), 1984 (1) |