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CCDB → Angiosperms → Compositae → Helianthus → Helianthus rigidus subsp. rigidus
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Helianthus rigidus subsp. rigidus | Helianthus pauciflorus Nutt. | 51(1) | Asteracea | Sossey-Alaoui, K. et al. 1998 Theor. Appl. Genet. |