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Shiro TSUYUZAKI
Plant community ecology / Environmental conservation

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

(First update on Jan. 13 2009. Last on July 25 2010)

Japanese mountainash
Sorbus commixta Hedl. [Rosaceae]

Nanakamado (ナナカマド, 七竃)

Lifeform: deciduous tree
Distribution: throughout Japan
Habitat: mountains

Synonyms

Sorbus commixta Hedl. var. sachalinensis Koidz.
Sorbus americana Marshall subsp. japonica (Maxim.) Kitam.


Genus Sorbus L.

Ohwi and Kitagawa (1983)

Four species in Hokkaido
S. sambuchifolia (Cham. et Schltdl.) Roemer (タカネナナカマド)

- var. pseudoglacilis C. K. Schneid. (ミヤマナナカマド)

S. matsumurana (Makino) Koehne (ウラジロナナカマド)

- f. pseudogracilis (Koidz.) Ohwi (ナンキンナナカマドモドキ)

S. commixta Hedl. (ナナカマド)

- var. rufoferruginea C. K. Schn. (サビバナナカマド) (not in Hokkaido)
- var. sachalinensis Koidz. (エゾナナカマド)
- var. wilfordii (Koehne) Sugim. (ツシマナナカマド) [not in Hokkaido]

S. alnifolia (Sieb. et Zucc.) C. Koch (アズキナシ)

- var. submollies Rehder (オクシモアズキナシ)
- var. lobulata (Koidz.) Rehder (フギレアズキナシ) (not in Hokkaido)


Sorbus commixta in Hokkaido

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On the foot of Mount Yotei on June 26, 2006

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[Left] Sproutings after the clear-cutting of forest on Senjaku Course in Teine Skislope on October 5 2009. [Right] Vigorous sprouting stems in front of the HU Central Coop Restaurant on October 22 2009.

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[Left] close-up of leaves. [Right] close-up of inflorescences. At the coast of Pekeretto Swamp, Sapporo, on June 26 2010.


References

  • General education "Field trip: Nature on lakes, volcanoes, sea and forests"
  • Mount Usu ( flora )

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