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CCDB → Angiosperms → Papaveraceae → Dendromecon
| Taxon name | Status | Median (n) |
| Dendromecon rigida Benth. | Accepted | 28 |
| Dendromecon rhamnoides Greene | Synonym of Dendromecon harfordii var. rhamnoides (Greene) Munz | 28 |
| Dendromecon rigida subsp. rigida | Synonym of Dendromecon rigida Benth. | 28 |