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(First upload on October 24 2014. Last on November 24 2016) [ 日本語 | English ]

Saponaria officinalis L.






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

Saponaria L. (サボンソウ)
Sabonsou (サボンソウ/シャボンソウ, 石鹸草), soapwort
Lifeform: perennial forb
Distribution: Europe - central Asia (introduced to Japan in Meiji Era)
Habitat: grasslands, riverbeds, etc. (escaped)

Hokkaido Blue List: rank B

Flower: pale pink - white
Use: gardening, traditionally used for soap and medicie (saponin in the roots)
Cultivars: double-flowered, etc.
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Saponaria officinalis in Hokkaido


ST1 ST2 ST3
ST4 ST5 ST6
[1-3] at a roadside, N11/W1, North Ward, Sapporo, on July 24 2014. [4-6] in a small flower garden under a street tree on N11/W5, North Ward, Sapporo, on July 20 2016.

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