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(First upload on August 25 2013. Last on November 9 2013) [ 日本語 | English ]

Betula L. (カバノキ) Yaegawa-kamba (ヤエガワカンバ, 八重皮樺), Asian black birch, or Dahurian birch Ko-ono-ore (コオノオレ, 小斧折) Lifeform: deciduous tree ≈ 15 m high Distribution: Usri - Amur - China - Korea - northern Japan Japan: only in Hokkaido and central Honshu (disjunct distribution) → probably related to geological timescale (Tertiary) → Red Data Book of Japan: near threatened, NT

Habitat: sunny, dry sites Seed dispersal: wind var. okuboi Miyabe et Tatewaki (ヒダカヤエガワ): Hidaka District

Betula davurica in Hokkaido

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1 2 3
[1/2] at the arboretum (樹木園) of Hokkaido Research Center, Forestry and Forest Products Research Institute, in Hitsujigaoka, Sapporo, on July 9 2013. [3] a bark (樹皮) that is the origin of Japanese name in the Ashoro Experimental Forest of Kyushu University, eastern Hokkaido, on June 25 2013.