Betula pubescens var. pumila

Taxonavigation

Taxonavigation: Fagales
Classification System: APG IV Superregnum: Eukaryota Regnum: Plantae Cladus: Angiosperms Cladus: Eudicots Cladus: Core eudicots Cladus: Rosids Cladus: Eurosids I Ordo: Fagales

Familia: Betulaceae
Subfamilia: Betuloideae
Genus: Betula
Subgenus: Betula subg. Betula
Sectio: Betula sect. Betula
Species: Betula pubescens
Varietas: Betula pubescens var. pumila

Name

Betula pubescens Ehrh. var. pumila (Zanoni ex Murray) Govaerts, World Checkl. Seed Pl. 2(1): 10 (1996).

Synonyms

• Basionym
  • Betula alba var. pumila Zanoni ex Murray, Prodr. Stirp. Gott.: 77 (1770).
• Heterotypic
  • Betula borealis Spach, Ann. Sci. Nat., Bot., sér. 2, 15: 196 (1841).
  • Betula tortuosa Ledeb., Fl. Ross. 3: 652 (1850).
  • Betula pubescens var. tiliifolia Laest., Bot. Not. 1856: 106 (1857).
  • Betula pumila var. borealis (Spach) Regel, Nouv. Mém. Soc. Imp. Naturalistes Moscou 13(2): 113 (1861).
  • Betula tortuosa var. genuina Regel, Nouv. Mém. Soc. Imp. Naturalistes Moscou 13(2): 90 (1861), nom. inval.
  • Betula tortuosa var. pubescens Regel, Nouv. Mém. Soc. Imp. Naturalistes Moscou 13(2): 93 (1861).
  • Betula alba subsp. tortuosa (Ledeb.) Regel, Bull. Soc. Imp. Naturalistes Moscou 38(2): 404 (1865).
  • Betula pubescens subsp. tortuosa (Ledeb.) Nyman, Consp. Fl. Eur.: 672 (1881).
  • Betula odorata var. tortuosa (Ledeb.) Rosenv., Meddel. Grønland 3: 707 (1892).
  • Betula pubescens var. tortuosa (Ledeb.) Koehne, Deut. Dendrol.: 109 (1893).
  • Betula pubescens subsp. borealis (Spach) Á.Löve & D.Löve, Univ. Colorado Stud., Ser. Biol. 17: 20 (1965).
  • Betula czerepanovii N.I.Orlova, Vestn. Leningradsk. Univ. 1978(3): 60 (1978).
  • Betula pubescens subsp. czerepanovii (N.I.Orlova) Hämet-Ahti, Phytocoenologia 15: 450 (1987).
  • Betula pubescens var. czerepanovii (N.I.Orlova) Hämet-Ahti, Memoranda Soc. Fauna Fl. Fenn. 65: 9 (1989).
  • Betula czerepanovii var. nasarovii Tzvelev, Novosti Sist. Vyssh. Rast. 34: 63 (2002).

Distribution

Native distribution areas:

Continental: Europe Regional: Northern Europe Finland, Iceland, Norway, Sweden. Regional: Eastern Europe East European Russia, North European Russia. Continental: Asia-Temperate Regional: Siberia Altay, West Siberia. Continental: Northern America Regional: Subarctic America Greenland. Regional: Eastern Canada Newfoundland. References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

• Ashburner, K. & McAllister, H.A. 2013. The genus Betula: A taxonomic revision of birches (A Botanical Magazine Monograph). Royal Botanic Gardens, Kew, 431 pp., ISBN 978-1-84246-141-9. Reference page. 
• Shaw., K., Roy, S. & Wilson, B., 2014. Betula pubescens var. pumila. The IUCN Red List of Threatened Species 2014. IUCN Red List Category: (Data Deficient). DOI: 10.2305/IUCN.UK.2014-3.RLTS.T194523A2344698.en. Reference page. 
• Govaerts, R. et al. 2019. Betula pubescens var. pumila in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2019 February 6. Reference page. 
• International Plant Names Index. 2019. Betula pubescens var. pumila. Published online. Accessed: 6 February 2019.