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CCDB → Angiosperms → Costaceae → Costus → Costus tonkinensis Gagnep.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Costus tonkinensis Gagnep. | Costus tonkinensis Gagnep. | 18 | IPCN online | Chen, Z. & S. Chen. 1984. A report on chromosome numbers of Chinese Zingiberaceae. Guihaia 4: 13–18. |