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(First upload on July 20 2011. Last on November 6 2016) [ 日本語 | English ]

Aesculus turbinata Blume






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

Three genera in Engler's syllabus (エングラー体系) [APG: Sapindaceae (ムクロジ)]

Hippocastanaceae DC. (トチノキ)


Aesculus L.
Billia Peyr.
Handeliodendron Rehd.

Aesculus L. (トチノキ) in Japan


A. turbinata Blume (トチノキ), one native species
Plantation
A. chinensis Bunge (シナトチノキ)
A. hippocastanum L. (セイヨウトチノキ)
A. indica (Colebr. ex Camb.) Hook. (インドトチノキ)
A. pavia L. (アカバナアメリカトチノキ)
A. × carnea Heyne (ベニバナトチノキ), A. hippocastanum × pavia

Aesculus turbinata in Hokkaido


Tochinoki (トチノキ, 栃ノ木), Japanese backeye/Japanese horse-chestnut
Lifeform: deciduous tree < 35 m high
Distribution: Japan (Kyushu - south to Mount Teine and Zenibako Coast in southeastern Hokkaido), probably escaped in the other regions of Hokkaido

Jomon forest (縄文の森)

Habitat: moist slopes along streams on mountains and ravines

Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト)

Fruit: globular, not developing spines → A. hippocastanum
Seed dispersal: cache (Irie & Tsuyuzaki 2011)
Chromosomal number: 2n = 40
f. pubescens (Rehder) Ohwi ex Yas. Endo (ウラゲトチノキ)
索引

ST1 ST2 ST3
ST4 ST5 ST6
[1/2] in Nakagawa Experimental Forest, Hokkaido University, on June 16 2011. The seeds (acorns) are cached by rodents (Irie & Tsuyuzaki 2011). [3-5] in Tsukiura Forest Park faced to Toya Lake on September 15 2015 (bark, 樹皮). [6] in the Sapporo City Nature Education Park on September 19 2016.

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