| Name | Lobelia laxiflora var. nelsonii (Fernald) M. R. McVaugh |
| Authorship | (Fernald) M. R. McVaugh |
| Rank | Variety |
| Placed in | Lobelia laxiflora Kunth |
| Citation | 1940 Ann. Missouri Bot. Gard. 27:349 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Lobelia laxiflora var. nelsonii (Fernald) M. R. McVaugh |
| Identification made in | [no date] (2) |