| Latin Name | Common Name | Family | Synonyms | Edibility Rating | Medicinal Rating |
| Lobelia cardinalis | Cardinal Flower | Campanulaceae | | 0 | 3 |
| Lobelia dortmanna | Water Lobelia, Dortmann's cardinalflower | Campanulaceae | | 0 | 2 |
| Lobelia inflata | Indian Tobacco | Campanulaceae | Dortmannia inflata. Lobelia michauxii. Rapuntium inflatum. Rapuntium michauxii | 0 | 3 |
| Lobelia radicans | | Campanulaceae | L. chinensis. Lour. | 0 | 3 |
| Lobelia sessilifolia | | Campanulaceae | | 1 | 0 |
| Lobelia siphilitica | Great Blue Lobelia, Blue Cardinal Flower, Big Blue Lobelia, Great Lobelia | Campanulaceae | | 0 | 2 |
| Lobelia spicata | Pale Spike, Palespike lobelia | Campanulaceae | | 0 | 1 |
| Lobelia tupa | Devil's Tobacco | Campanulaceae | | 0 | 1 |
| Pratia angulata | | Campanulaceae | Lobelia angulata. L. rugulosa. | 2 | 0 |