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(First upload on July 14 2011. Last on September 25 2023) [ 日本語 | English ]

Chamaele decumbens (Thunb.) Makino






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

Chamaele Miq. (セントウソウ) in Japan
One species, C. decumbens, is distributed in Japan
Sentousou (セントウソウ, 仙洞草)
Ourendamashi (オウレンダマシ)
Lifeform : perennial forb < 35 cm
Distribution: endemic to Japan
Habitat: forest floor and edge

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

Chromosome number: 2n = 22
Synonyms:

Sium decumbens Thunb.

var. gracillima H. Wolff (ヒナセントウソウ)
var. micrantha Masam. (ヤクシマセントウソウ)
f. dilatata Satake et Okuyama (イブキセントウソウ)
f. flabellifoliata Y. Kimura (オオギバセントウソウ)
f. japonica (Y. Yabe) Ohwi (ミヤマセントウソウ), slim leaf
索引

Chamaele decumbens in Hokkaido


ST1 ST2 ST3
ST4 ST5 ST6
[1] in Tomakomai Experimental Forest (ToEF) on May 21 2005. [2-4] in a backyard of the ruins of Shimamatsu Station (島松駅逓所) on May 3 2016. [5/6] along Horonai River in ToEF, central Hokkaido, on June 10 2022.

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