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CCDB → Angiosperms → Crassulaceae → Cotyledon
| Taxon name | Status | Median (n) |
| Cotyledon barbeyi Schweinf. ex Baker | Accepted | 9 |
| Cotyledon orbiculata L. | Accepted | 9 |
| Cotyledon orbiculata var. oblonga (Haw.) DC. | Accepted | 9 |
| Cotyledon papillaris L. | Accepted | 9 |
| Cotyledon tomentosa Harv. | Accepted | 9 |
| Cotyledon woodii Schönland & Baker | Accepted | 9 |
| Cotyledon macrantha A. Berger | Unresolved | 9 |
| Cotyledon teretifolia Thunb. | Synonym of Cotyledon campanulata Marloth | 9 |
| Cotyledon ausana Dinter | Synonym of Cotyledon orbiculata L. | 9 |
| Cotyledon decussata Sims | Synonym of Cotyledon orbiculata L. | 9 |
| Cotyledon salmiana Poelln. | Synonym of Cotyledon woodii Schönland & Baker | 9 |
| Cotyledon malacophylla Pall. | Synonym of Orostachys malacophylla (Pall.) Fisch. | 12 |
| Cotyledon spinosa L. | Synonym of Orostachys spinosa (L.) Sweet | 6 |