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CCDB → Angiosperms → Compositae → Helianthella → Helianthella mexicana A. Gray
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Helianthella mexicana A. Gray | Helianthella mexicana A. Gray | 15II+2IIB(1) | Asteracea | Pinkava & K. 1977 Amer. J. Bot. | |||
| Helianthella mexicana A. Gray | Helianthella mexicana A. Gray | 15+2IIB | IPCN online | Pinkava, D. J. & D. J. Keil. 1977. Chromosome counts of Compositae from the United States and Mexico. Amer. J. Bot. 64: 680–686. |