Top
Header

(First upload on April 6 2009. Last on June 13 2017) [ 日本語 | English ]

Platanus × acerifolia (Aiton) Willd.






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

⇒ Engler's syllabus (エングラー体系)

Platanaceae T. Lestib. (スズカケノキ科)


One extant genus:
Platanus L. (スズカケノキ)
Approximately 10 species in the world
We commonly call all species platanus (プラタナス) → making confusion
P. occidentalis L. (アメリカスズカケノキ)
P. orientalis L. (スズカケノキ)
P. × acerifolia (Aiton) Willd. (モミジバスズカケノキ)
Lacinia: P. orientalis > P. × acerifolia > P. occidentalis

Fruit: P. orientalis = 3-6, P. × acerifolia = 1-3, and P. occidentalis = 1

Morphological comparisons of three Platanus species (Koishikawa Botanical Garden on March 16 2017)
Leaf margin (tooth) Bark Fruit
P. orientalis deep sloughing off, whitish 3-7 on an axis
P. × acerifolia intermediate sloughing off, mottled white green and dark green mosaics 2-3 on an axis
P. occidentalis shallow tandem, fine shake, dark brown one by one

Platanus × acerifolia in Hokkaido University Campus


Momijibasuzukakenoki (モミジバスズカケノキ, 紅葉葉鈴懸ノ木), London plane tree
Lifeform: deciduous tree
Distribution: transplantation (non-native regions because of the artifial hybrid made in England)

Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト)
HUSTEP: Plants and Plant communities in Japan (flora list)

Probably a hybrid of P. orientalis and P. occidentalis
Synonyms: P. × hispanica Muenchh., P. × hybrida Brot.
索引

ST1 ST2 ST3
[1/2] on Februray 20 2009 at the backyard of Northern Seikyo Restaurant in Hokkaido University Campus. [2] the trunk or bark (樹皮) is characteristic. [3] on a bridge at Sosei River, Sapporo, on July 24 2014.

Platanus occidentalis L. in Japan


ST1 ST2 Amerikasuzukakenoki (アメリカスズカケノキ, 亜米利加鈴懸ノ木), American sycamore, or buttonwood
Lifeform: deciduous tall tree
Distribution: eastern North America (introduced to Japan in Meiji Era) Use: street tree

[1/2] a giant tree (巨木) at Hibiya Park, Tokyo, on December 27 2014.

スズカケノキ

 このアメリカスズカケノキは、明治37年(1904)目黒の林業試験場(現: 林試の森公園)から試験場長白沢保美博士の寄贈により、この日比谷公園に植えられたものです。当時実生後数年たった苗を植えていますから、現在の樹齢は約100年にもなります。
 当時、スズカケノキ(プラタナス)は、街路樹の新種として外国から種をとりよせて試験的に植えていた時期で、その後この木の枝をとり、さし木をして街路樹がふやされていきました。
 現在のスズカケノキは、都内の街路樹の15%(約5万本)を占めています。

Platanus orientalis L. in Japan


ST1 ST2 Suzukakenoki (スズカケノキ, 鈴懸ノ木), oriental planetree
Lifeform: deciduous tree up to 30 m tall
Distribution: southeastern Europe - western Asia

introduced to Japan in Meiji Era


[1/2] in the Koishikawa Botanical Garden (小石川植物園), the University of Tokyo, on March 16 2017. → giant tree (巨木)
フッター