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CCDB → Angiosperms → Compositae → Otopappus
| Taxon name | Status | Median (n) |
| Otopappus acuminatus S. Watson | Accepted | 16 |
| Otopappus epaleaceus Hemsl. | Accepted | 16 |
| Otopappus imbricatus (S. Bip.) S. F. Blake | Accepted | 16 |
| Otopappus robustus Hemsl. | Accepted | 16 |
| Otopappus scaber S. F. Blake | Accepted | 16 |
| Otopappus tequilanus (A. Gray) B. L. Rob. | Accepted | 15 |
| Otopappus verbesinoides Benth. | Accepted | 16 |
| Notoptera tequilana (A. Gray) S. F. Blake | Synonym of Otopappus tequilanus (A. Gray) B. L. Rob. | 15 |
| Otopappus robinsonii Klatt | Synonym of Verbesina robinsonii (Klatt) Fernald ex B. L. Rob. & Greenm. | 17 |