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CCDB → Angiosperms → Betulaceae → Betula → Betula tortuosa Ledeb.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Betula tortuosa Ledeb. | Betula pubescens var. pumila (L.) Govaerts | 56 | IPCN online | Krogulevich, R. E. 1976. Rol poliploidii v genesise flory Putorana. In: L. I. Malyshev, ed. 1976 Flora Putorana: Materali k Poznaniiu Osobennostei Sostava i Genezisia Gornykh Subarkticheskikh Flor Sibir. Novosibirsk. Nauka, Novosibirsk | |||
| Betula tortuosa Ledeb. | Betula pubescens var. pumila (L.) Govaerts | 56 | IPCN67-71 | KNABEN, G., & T. ENGELSKJON. 1967. Chromosome numbers of Scandinavian arctic-alpine plant species. II. Act. Boreal. A. Sci. No. 21: 1-57. | |||
| ! | Betula tortuosa Ledeb. | Betula pubescens var. pumila (L.) Govaerts | 56 | Darlington, 1955 | L. &L. 1944b |