Birk
Betula pendula
Betula pendula forest, Inari, Finland
Scientific classification
Kinrick: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fagales
Faimily: Betulaceae
Genus: Betula
Subgenus: Betula
Species: B. pendula
Binomial name
Betula pendula
Distribution map

Betula pendula (birk) is a widespread European birk wi white (siller) bark, tho in soothren Europe it is anly foond at haicher altitudes. Its range extends intae soothwest Asie in the muntains o northren Turkey an the Caucasus. The closely relatit Betula platyphylla in northren Asie an Betula szechuanica o central Asie are an aa treatit as varieties o siller birk bi some botanists, as B. pendula var. platyphylla an B. pendula var. szechuanica respectively (see birk classification).[1][2][3]

References

eedit
  1. Flora Europaea: Betula pendula
  2. Hunt, D., ed. (1993). Betula. Proceedings of the IDS Betula Symposium 2–4 October 1992. International Dendrology Society ISBN 0-9504544-5-1.
  3. Rushforth, K. (1999). Trees of Britain and Europe. HarperCollins ISBN 0-00-220013-9.