Every accepted species in the genus is listed. A name links to its page when we hold at least three commercially licensed photographs of it. Where we do not, the row shows how many we actually found, which is usually none.
| Species | Authority | Usable photographs | Page |
|---|---|---|---|
| Gratiola hispida | (Benth.) Pollard | 130 | documented |
| Gratiola officinalis | L. | 110 | documented |
| Gratiola neglecta | Torr. | 86 | documented |
| Gratiola virginiana | L. | 68 | documented |
| Gratiola lutea | Raf. | 64 | documented |
| Gratiola pilosa | Michx. | 59 | documented |
| Gratiola ebracteata | Benth. ex A.DC. | 55 | documented |
| Gratiola sexdentata | A.Cunn. | 48 | documented |
| Gratiola ramosa | Walter | 46 | documented |
| Gratiola amphiantha | D.Estes & R.L.Small | 39 | documented |
| Gratiola floridana | Nutt. | 31 | documented |
| Gratiola quartermaniae | D.Estes | 29 | documented |
| Gratiola pedunculata | R.Br. | 15 | documented |
| Gratiola pubescens | R.Br. | 15 | documented |
| Gratiola torreyi | Small | 14 | documented |
| Gratiola nana | Benth. | 13 | documented |
| Gratiola peruviana | L. | 12 | documented |
| Gratiola bogotensis | Cortés ex Pennell | 9 | documented |
| Gratiola brevifolia | Raf. | 9 | documented |
| Gratiola heterosepala | H.Mason & Bacigal. | 8 | documented |
| Gratiola japonica | Miq. | 3 | documented |
| Gratiola fluviatilis | Koidz. | 0 | below the evidence gate |
| Gratiola graniticola | D.Estes | 0 | below the evidence gate |
| Gratiola griffithii | Hook.f. | 0 | below the evidence gate |
| Gratiola linifolia | Vahl | 0 | below the evidence gate |
| Gratiola mauretanica | (Emb. & Maire) I.Soriano & T.Romero | 0 | below the evidence gate |
| Gratiola oresbia | B.L.Rob. | 0 | below the evidence gate |
| Gratiola pumilo | F.Muell. | 0 | below the evidence gate |
| Gratiola viscidula | Pennell | 0 | below the evidence gate |
This site is commercial, so it can only publish photographs licensed for commercial use. Roughly three quarters of the photographs on iNaturalist are CC BY-NC, which excludes them. A species needs at least three usable photographs before we will build it a page, because a page with one picture and no traits tells you nothing you could not get from a search result, and generating hundreds of thousands of those is precisely the practice that got the previous version of this site deleted.
So the species above without a link are not errors and they are not omissions. They are real, accepted plants that we cannot yet document to the standard we hold ourselves to, and the count in the photographs column is exactly how far short we fall.