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CCDB → Angiosperms → Compositae → Helianthus → Helianthus occidentalis Riddell
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Helianthus dowellianus M. A. Curtis | Helianthus occidentalis Riddell | 17(1) | Asteracea | Schevchenko 1937b SB. trhudov Saratovsk. selektz. opytn. stantzii <<Rabottz po tziolopii khulbtrntzch rastenii>>, ied VASCHNIL, M. | ||
| Helianthus occidentalis Riddell | Helianthus occidentalis Riddell | 17(1) | Asteracea | Smith D. M. & M. 1959 Rhodora | |||
| Helianthus occidentalis Riddell | Helianthus occidentalis Riddell | 34 | IPCN online | Mohan, G. S. R. & A. Seetharam. 2005. Studies on genetic relationships among cultivated and wild sunflowers through RAPD markers. Cytologia 70: 267–273. | |||
| ! | Helianthus occidentalis Riddell | Helianthus occidentalis Riddell | 34 | eFlora | |||
| ! | Helianthus occidentalis Riddell | Helianthus occidentalis Riddell | 34 | Darlington, 1955 | |||
| Helianthus occidentalis Riddell | Helianthus occidentalis Riddell | 17 | Cave1956supp | Heiser & Smith 1955 | |||
| ! | Helianthus occidentalis Riddell | Helianthus occidentalis Riddell | 17 | Cave1959 | Smith & Martin 1959 |