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CCDB → Pteridophytes → Dryopteridaceae → Polystichum → Polystichum × utsumii (X)
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Polystichum × utsumii (X) | Polystichum × utsumii Kurata | 123 | IPCN73-74 | DAIGOBO, S. 1974. Chromosome numbers of the fern genus Polystichum (2). J. Jap. Bot. 49: 371-378 |