| Name | Lobelia cardinalis f. alba (J. McNab) H. St. John |
| Authorship | (J. McNab) H. St. John |
| Rank | Forma |
| Placed in | Lobelia cardinalis Linnaeus |
| Citation | 1920 Rhodora 21: 218 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lobelia cardinalis f. alba (J. McNab) H. St. John |
| Identification made in | [no date] (1) |