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CCDB → Angiosperms → Plantaginaceae → Gratiola
| Taxon name | Status | Median (n) |
| Gratiola aurea Pursh | Accepted | 14 |
| Gratiola brevifolia Raf. | Accepted | 14 |
| Gratiola japonica Miq. | Accepted | 8 |
| Gratiola linifolia Vahl | Accepted | 48 |
| Gratiola nana Benth. | Accepted | 15 |
| Gratiola neglecta Torr. | Accepted | 8 |
| Gratiola officinalis L. | Accepted | 16 |
| Gratiola oresbia B. L. Rob. | Accepted | 18 |
| Gratiola pedunculata R. Br. | Accepted | 16 |
| Gratiola ramosa Walter | Accepted | 7 |
| Gratiola virginiana L. | Accepted | 8 |
| Gratiola viscidula Pennell | Accepted | 8 |
| Gratiola sexdentata A. Cunn. | Unresolved | 45 |
| Amphianthus pusillus Torr. | Synonym of Gratiola amphiantha D. Estes & R. L. Small | 9 |
| Mazus goodenifolius (Hornem.) Pennell | Synonym of Gratiola goodenifolia Hornem. | 10 |
| Gratiola neglecta var. glaberrima (Fernald) Fernald | Synonym of Gratiola neglecta Torr. | 8 |