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(First upload on August 25 2008. Last on August 11 2018) [ 日本語 | English ]

Rosa rugosa Thunb.






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

Rosa L. (バラ)
Hamanasu or hamanashi (ハマナス, 浜梨), Japanese rose or sea tomato
Lifeform: Shrub less than 2 m in height, making dense thickets
Distribution: Nothern China - Korea - Japan

the flower of Hokkaido

Habitat: Sandy or gravely seashore (海浜)

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

Fruit: orange-colored pomaceous fruit (rose hip)
Chromosome number: 2n = 14
f. alba (Ware) Rehder (シロバナハマナス)
Cultivars
Double-flowered
F.J. Grootendorst (de Goey): red →
Pink Grootendorst (F.J. Grootendorst): pink →
White Grootendorst (Paul Eddy): white
索引

Rosa rugosa in Hokkaido


ST1 ST2 ST3
ST4 ST5
[1/2] at Higashi-Kunebetsu Coast in the city of Hokuto, southern Hokkaido, Japan, on August 4 2008. [3] at Ishikari Coast, close to the area where the establihsment of wind farm is planed, on September 3 2015. [4] at Ishikari Coast Plant Conservation Center on July 10 2011. The characteristics of R. rugosa on this coast are very short, i.e., less than 20 cm tall, probably because the flat topography does not protect the plants from strong wind. [5] on Arutori Cape faced to Funka Bay, southern Hokkaido, on July 25 2013.


f. alba

Shirobanahamanasu (シロバナハマナス, 白花浜梨)
ST1 ST2 ST3
Double-flowered cultivar [1/2] at a hedge in N21/W2, North Ward, Sapporo, on September 7 2015. [3] under a street tree on June 23 2015.

cv Pink Grootendorst

ST1 ST2 ST3
[1-3] in a house garden, N27/E2, East Ward, Sapporo, on July 2 2018.

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