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CCDB → Angiosperms → Compositae → Helianthus → Helianthus × laetiflorus Pers.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Helianthus × laetiflorus | Helianthus × laetiflorus Pers. | 102 | flora of NW Europe | http://wbd.etibioinformatics.nl/bis/flora.php?selected=beschrijving&menuentry=soorten&id=4133 | ||
| ! | Helianthus × laetiflorus Pers. | Helianthus × laetiflorus Pers. | 102 | Poland Database | Pogan E., Jankun A., Wcis?o H. 1991. Further studies in chromosome numbers of Polish Angiosperms. Part XXIV. Acta Biol. Cracov. Ser. Bot. 33, 25-43. | ||
| ! | Helianthus × laetiflorus Pers. | Helianthus × laetiflorus Pers. | 51(1) | Asteracea | Heiser & S. 1955 Proc. Indiana Acad. Sci. | ||
| Helianthus × laetiflorus Pers. | Helianthus × laetiflorus Pers. | 102(1) | Asteracea | Wcislo 1990 Acta Biol. Cracov. ser. Bot. | |||
| ! | Helianthus × laetiflorus Pers. | Helianthus × laetiflorus Pers. | 102 | IPCN online | Wcis|1lo, H. 1991. In Further studies in chromosome numbers of Polish angiosperms, part 24. Acta Biol. Cracov., Ser. Bot. 33: 29, 32, 37. | ||
| ! | Helianthus × laetiflorus | Helianthus × laetiflorus Pers. | 102 | eFlora |