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CCDB → Angiosperms → Compositae → Crepidifolium
| Taxon name | Status | Median (n) |
| Youngia tenuicaulis (Babc. & Stebbins) Czerep. | Synonym of Crepidifolium akagii (Kitag.) Sennikov | 21 |
| Crepidiastrum tenuifolium (Willd.) Sennikov | Synonym of Crepidifolium tenuifolium (Willd.) Sennikov | 5 |
| Crepis pectinata Steph. ex Herder | Synonym of Crepidifolium tenuifolium (Willd.) Sennikov | 5 |
| Crepis tenuifolia Willd. | Synonym of Crepidifolium tenuifolium (Willd.) Sennikov | 5 |
| Youngia tenuifolia (Willd.) Babc. & Stebbins | Synonym of Crepidifolium tenuifolium (Willd.) Sennikov | 5 |