| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Hydrophyllaceae | Phacelia dubia var. dubia | Appalachian Phacelia | Floodplain forests, other moist and rich forests, rocky forests, fields, roadsides, granitic flatrocks. | Var. dubia ranges from NY and PA west to WV, south to nc. SC, sw. NC, and se. TN, with scattered occurrences (perhaps adventive) further south, to FL Panhandle (L. Anderson, pers.comm., 2022). |  |
| Hydrophyllaceae | Phacelia dubia var. georgiana | Georgia Phacelia | Granitic flatrocks. | Var. georgiana ranges from SC through GA, west to ec. AL, in the Piedmont. It has sometimes been attributed to SC, and Levy found plants in SC which morphologically resemble var. georgiana, but he concluded that this ‘imitator’ genotype was largely sterile when bred with var. georgiana. See var. dubia for additional discussion. |  |
| Hydrophyllaceae | Phacelia dubia var. interior | Central Basin Phacelia | Limestone glades, dry fields over limestone. | Endemic in c. TN. | |
| Hydrophyllaceae | Phacelia dubia var. rionensis | South Carolina Phacelia | Granitic flatrocks and domes. | Nc. and sc. SC. |