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CCDB → Gymnosperms → Taxaceae → Cephalotaxus → Cephalotaxus harringtonii (Knight) K. Koch
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Cephalotaxus harringtonii var. drupacea (Siebold & Zucc.) Koidz. | Cephalotaxus harringtonii (Knight) K. Koch | 12 | IPCN online | Mehra, P. N. 1988. Indian Conifers, Gnetophytes and Phylogeny of Gymnosperms. | ||
| Cephalotaxus harringtonia var. fastigiata (Carrière) Rehder | Cephalotaxus harringtonii (Knight) K. Koch | 22 | IPCN online | ||||
| Cephalotaxus koreana Nakai | Cephalotaxus harringtonii (Knight) K. Koch | 24 | IPCN73-74 | LEE, Y.N. 1972. Chromosome number of flowering plants in Korea (4). J. Korean Res. Inst. Better Living 8: 41-51. | |||
| ! | Cephalotaxus drupacea Siebold & Zucc. | Cephalotaxus harringtonii (Knight) K. Koch | 24 | Darlington, 1955 | Sugihara 1940 |