Morphological forms of Karelian birch
Abstract
The article contains definition and classification of morphological forms of Karelian birch.
References
Saarnio R. 1976. The quality and development of cultivated curly-birch (Betula verrucosa f. carelica Sok.) stands in southern Finland. Folia For. 263: 1–28. (in Finnish with English summary)
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