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(First upload on June 1 2011. Last on May 20 2022) [ 日本語 | English ]

Quercus L. (コナラ) Arakashi (アラカシ/クロガシ/ナラバガシ, 粗樫), Japanese blue oak Life form: evergreen tall tree (常緑高木) Distribution: China - Taiwan - southen Japan (the northern limit = Miyagi Prefecture) The northern limit in Japan = Niigata / Miyagi Habitat: secondary forests such as coppice forests ☛ bark (樹皮) Seed dispersal: gravity or cache Synonyms: Cyclobalanopsis glauca (Thunb.) Oerst.

Cyclobalanopsis glauca (Thunb.) Oerst. var. kuyuensis (J. C. Liao) J. C. Liao Cyclobalanopsis repandifolia (J. C. Liao) J. C. Liao Discarded varieties: - var. kuyuensis J. C. Liao - var. nudata Blume - f. elongata (Honda) Sugim. ex Ohwi et Kitag., comb. nud. - f. latifolia (Nakai) Hiyama - f. stenocarpa Honda var. amamiana (Hatus.) Hatus. ex H. Ohba (アマミアラカシ) cv. Fasciata (ヨコメガシ) cv. Lacera (ヒリュウガシ)

Quercus glauca in Japan

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1 2 3 4
5 6 7
[1/2] near Takaragaike Pond (宝ヶ池), Kyoto, on March 12 2026. [3/4] at Nagai Botanical Garden, Osaka, on May 21 2011. [5-7] in Tsurumi Green Space Park (鶴見緑地公園), Tsurumi Ward, Osaka City, on February 6 2022. Records: in Botanic Gardens, Tohoku University, Natural Monument Aobayama, northern Honshu, on March 23 2016.