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CCDB → Angiosperms → Compositae → Senecio → Senecio douglasii var. douglasii
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Senecio douglasii var. douglasii | Senecio flaccidus var. douglasii (DC.) B. L. Turner & T. M. Barkley | 20 | IPCN online | ||||
| Senecio douglasii var. douglasii | Senecio flaccidus var. douglasii (DC.) B. L. Turner & T. M. Barkley | 20II | IPCN online | Freeman, C. C. & R. E. Brooks. 1988. Documented plant chromosome numbers 1988: 1. Chromosome counts for North American plants -- I. Sida 13: 241–250. | |||
| Senecio douglasii var. douglasii | Senecio flaccidus var. douglasii (DC.) B. L. Turner & T. M. Barkley | 20 | IPCN online | Keil, D. J. & D. J. Pinkava. 1976. Chromosome counts and taxonomic notes for Compositae from the United States and Mexico. Amer. J. Bot. 63: 1393–1403. |