Betula verrucosa var. obscura (Kotula ex Fiek) Gürke Pl. Eur. 2: 48 (1897)

Nomenclatural References

• literature : Pl. Eur. 2: 48. 1897 BHL link from IPNI metadata.
• person : Andrzej Kotula (1822-1891) Based on occurrence of standard abbreviation 'Kotula' in the authors string.
• person : Emil Fiek (1840-1897) Based on occurrence of standard abbreviation 'Fiek' in the authors string.
• person : Robert Louis August Maximilian Gürke (1854-1911) Based on occurrence of standard abbreviation 'Gürke' in the authors string.
• database : IPNI Record: 77265862-1
• database : The Plant List v1.1 record kew-21815
• database : The Plant List version 1.0, record: kew-21815