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CCDB → Angiosperms → Compositae → Helianthus → Helianthus schweinitzii Torr. & A. G. [. H. O. B. H. G. (. =. 17) & H. M. (. =. 17)]
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Helianthus schweinitzii Torr. & A. G. [. H. O. B. H. G. (. =. 17) & H. M. (. =. 17)] | Helianthus schweinitzii Torr. & A. Gray | 51(? by Mattews, C. R. & H. 1999)(1) | Asteracea | Heiser et al. 1969 Mem. Torrey Bot. Club |