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

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

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