CCDB is a community resource. If you are aware of any missing data or if any of the counts are erroneous please submit it to the forms submit new counts, or report erroneous counts.
CCDB → Angiosperms → Apiaceae → Ptychotis
| Taxon name | Status | Median (n) |
| Ptychotis saxifraga (L.) Loret & Barrandon | Accepted | 11 |
| Ptychotis sardoa Pignatti & Metlesics | Unresolved | 11 |
| Ptychotis ammoides (L.) W. D. J. Koch | Synonym of Ammoides pusilla (Brot.) Breistr. | 6 |
| Ptychotis heterophylla W. D. J. Koch | Synonym of Ptychotis saxifraga (L.) Loret & Barrandon | 11 |