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CCDB → Angiosperms → Compositae → Helianthus → Helianthus heterophyllus Nutt.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Helianthus heterophyllus Nutt. | Helianthus heterophyllus Nutt. | 17(1) | Asteracea | Heiser & S. 1955 Proc. Indiana Acad. Sci. | |||
| ! | Helianthus heterophyllus Nutt. | Helianthus heterophyllus Nutt. | 15-17II+0-4I(4) | Asteracea | Heiser 1965 Ann. Missouri Bot. Gard. | ||
| ! | Helianthus heterophyllus Nutt. | Helianthus heterophyllus Nutt. | 34 | eFlora | |||
| ! | Helianthus heterophyllus Nutt. | Helianthus heterophyllus Nutt. | 34 | C-values database | Sims LE, Price HJ. 1985. Nuclear DNA content variation in Helianthus (Asteraceae). American Journal of Botany 72: 1213-1219. | ||
| Helianthus heterophyllus Nutt. | Helianthus heterophyllus Nutt. | 17 | Cave1956supp | Heiser & Smith 1955 |