| Name | Lobelia flaccidifolia Small |
| Authorship | Small |
| Rank | Species |
| Placed in | Lobelia Linnaeus |
| Citation | 1897 Bull. Torrey Bot. Club 24(7): 338–339 |
| Holdings | 23 Specimens held in the Harvard University Herbaria identified as Lobelia flaccidifolia Small |
| Identification made in | [no date] (11), 1988 (1), 1993 (11) |