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CCDB → Angiosperms → Apiaceae → Heracleum → Heracleum rigens Wall. ex DC.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Tetrataenium rigens (Wall.) Manden. | Heracleum rigens Wall. ex DC. | 22 | IAPT/IOPB | IAPT/IOPB Chromosome Data 8 | ||
| ! | Heracleum rigens Wall. ex DC. | Heracleum rigens Wall. ex DC. | 40 | IPCN online | Subramanian, D. 1986. Cytotaxonomical studies in south Indian Apiaceae. Cytologia 51: 479–488. | ||
| ! | Heracleum rigens Wall. ex DC. | Heracleum rigens Wall. ex DC. | 20 | 40 | IPCN online | Krishnappa, D. G. & A. N. Basappa. 1988. SOCGI plant chromosome number reports -- VI. J. Cytol. Genet. 23: 38–52. | |
| Heracleum courtallense Gamble | Heracleum rigens Wall. ex DC. | 40 | IPCN online | Subramanian, D. 1986. Cytotaxonomical studies in south Indian Apiaceae. Cytologia 51: 479–488. |