| Name | Lobelia siphilitica f. laevicalyx Fernald |
| Authorship | Fernald |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Lobelia siphilitica Linnaeus |
| GUID | urn:lsid:ipni.org:names:142392-2 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lobelia siphilitica f. laevicalyx Fernald |
| Identification made in | [no date] (1) |