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(First upload on September 12 2008. Last on June 1 2015) [ 日本語 | English ]

Dryas octopetala L. var. asiatica (Nakai) Nakai






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

Dryas L. (チョウノスケソウ)
Chromosome number: 2n = 18 (Elkington 1971)
Dryas octopetala L. (キョクチチョウノスケソウ), Mountain avens
Synonyms:

D. tchonoskii Juz.
D. alaskensis Pors.
D. kamtchatica Juz.
D. punctata Juz.
Dryadaea octopetala Kuntze

ssp. viscosa (Juz.) Hultén [syn. D. viscosa Juz.]
ssp. hookeriana (Juz.) Hultén [syn. D. hookeriana Juz.]
var. asiatica (Nakai) Nakai
Chounosukesou (チョウノスケソウ, 長之助草), (eightpetal) mountain avens
Lifeform: deciduous shrub
Distribution: tundra (ツンドラ)

Japan: alpine and subalpine zones in central Honshu and Hokkaido

索引

cotopetala1 cotopetala
[1] between Komakusa-daira Plain and Mount Akadake in central Hokkaido on July 9 2014 (by Miyazaki N)

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