| Hydrophyllaceae |
|
Phacelia unranked Dubiae
| Small | Man. S.E. Fl. 1097 | 1933 |
| Hydrophyllaceae |
|
Phacelia dubia
| (L.) Trel. | Rep. Ark. geol. Surv. 1888(4): 205 | 1891 |
| Hydrophyllaceae |
|
Phacelia dubia var. dubia
| | | |
| Hydrophyllaceae |
|
Phacelia dubia var. fallax
| (Fernald) Gleason | Phytologia 4(1): 24 | 1952 |
| Hydrophyllaceae |
|
Phacelia dubia var. georgiana
| McVaugh | Ecol. Monogr. 13: 158 | 1943 |
| Hydrophyllaceae |
|
Phacelia dubia var. gilioides
| (Brand) Gleason | Phytologia 4(1): 24 | 1952 |
| Hydrophyllaceae |
|
Phacelia dubia var. hirsuta
| (Nutt.) Trel. | Rep. Ark. geol. Surv. 1888(4): 205 | 1891 |
| Hydrophyllaceae |
|
Phacelia dubia var. interior
| Fernald | Rhodora 46: 54-55, pl. 816, f. 4 | 1944 |