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CCDB → Gymnosperms → Taxaceae → Cephalotaxus → Cephalotaxus drupacea Siebold & Zucc.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Cephalotaxus drupacea Siebold & Zucc. | Cephalotaxus harringtonii (Knight) K. Koch | 24 | Darlington, 1955 | Sugihara 1940 |