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(First upload on January 17 2017. Last on October 5 2023) [ 日本語 | English ]

Equisetum L. (トクサ) Himedokusa (ヒメドクサ, 姫木賊), dwarf horsetail or dwarf scouring rush Lifeform: (semi-)evergreen perennial horsetail Distribution: the Arctic Circle, including Japan (Hokkaido) rare (reported from Sarobetsu) RDB: IB

Habitat: wetlands, forest floors, etc. Stem: no branching, 3-6 mm in diameter Chromosome number: n = 108 Use: gardening ssp. scirpoides ssp. walkowiaki R. J. Walkowiak

Equisetum scirpoides in Hokkaido

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1 2 3
[1] in a large garden store, Sapporo, on November 4 2017. (need to re-check: Equisetum variegatum). [2/3] in the greenhouse of Hokkaido University Botanic Garden on September 30 2023.