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 → Compositae → Psathyrotopsis
| Taxon name | Status | Median (n) |
| Psathyrotopsis scaposa (A. Gray) H. Rob. | Accepted | 19 |
| Psathyrotes purpusii Brandegee | Synonym of Psathyrotopsis purpusii (Brandegee) Rydb. | 19 |
| Psathyrotes scaposa A. Gray | Synonym of Psathyrotopsis scaposa (A. Gray) H. Rob. | 19 |