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(First upload on March 31 2016. Last on July 31 2020) [ 日本語 | English ]

Equisetum palustre L.






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

Equisetum L. (トクサ)
Inugugina (イヌスギナ, 犬杉菜), marsh horsetail, or the humpback
Lifeform: summergreen perennial horsetail
Morophology: highly variable (often misidentified)
Distribution: widespread in cool regions of Eurasia (northern part of Japan) and North America
Habitat: sunny, wet sites
Discarded varieties
var. japonicum Nakai
f. verticillatum Milde
索引

Equisetum palustre in Hokkaido


ST1 ST2 ST3
ST4 ST5
[1/2] near Akanuma (Red Pond), Kushiro Moor, eastern Hokkaido, on June 28 2015. [3] along a boardwalk near Kushiro Wetland Visitor Center, eastern Hokkaido, on June 5 2019. [4/5] in Abira wetland, central Hokkaido, on June 16 2020.

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