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CCDB → Angiosperms → Proteaceae → Protea → Protea grandiflora Thunb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Protea grandiflora Thunb. | Protea nitida Mill. | 24 | Fedorov, 1974 | de Vos 1943 | |||
| ! | Protea grandiflora Thunb. | Protea nitida Mill. | 24 | Darlington, 1955 |