| Name | Lobelia siphilitica var. ludoviciana A. de Candolle |
| Authorship | A. de Candolle |
| Rank | Variety |
| Placed in | Lobelia siphilitica Linnaeus |
| Citation | 1839 Prodr. [A. P. de Candolle] 7(2): 377 |
| Holdings | 14 Specimens held in the Harvard University Herbaria identified as Lobelia siphilitica var. ludoviciana A. de Candolle |
| Identification made in | [no date] (14) |