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CCDB → Angiosperms → Compositae → Cirsium → Cirsium otayae Kitam.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Cirsium otayae Kitam. | Cirsium otayae Kitam. | 68(2) | Asteracea | Nakata et al. 2001 Bull. Bot. Gard. Toyama | |||
| Cirsium otayae Kitam. | Cirsium otayae Kitam. | 68(1) | Asteracea | Masukawa et al. 1990 Proc. Ann. Meet. Japan. Soc. Plant Taxon. | |||
| Cirsium otayae Kitam. | Cirsium otayae Kitam. | 68 | IPCN online | Kadota, Y. 1991. Taxonomic studies of Cirsium (Asteraceae) in Japan I. Alpine species of central Honshu---the Cirsium fauriei group. Bull. Natl. Sci. Mus., Tokyo, B 17: 123–139. |