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(First upload on January 30 2013. Last on November 12 2015) [ 日本語 | English ]

Calamagrostis Adans. (ノガリヤス) Himenogariyasu (ヒメノガリヤス, 姫野刈安) Lifeform: perennial grass, with short rhizomes Distribution: Japan - southern Kuril Habitat: baregrounds, grasslands, and forest edges, common on the volcano Mount Koma flora on Mount Koma and Mount Usu

Chromosome number: 2n = 28, 42, 49, 56, 63, 70, or 73 Synonyms Deyeuxia hakonensis (Franch. et Sav.) Keng Calamagrostis hakonensis Franch. et Sav. var. exaristata (Honda) Ohwi, discarded Tateoka T. 1984. Calamagrostis hakonensis (Poaceae): Distribution and differentiation of cytotypes. Botanical Magazine. Tokyo 97: 247-270

Calamagrostis hakonensis in Japan

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1 2 3
[1] at a trail to go the peak of Mount Tomamu on July 20 2012. [2/3] at 6th trail near the summit of Mount Takao (599 m elevation), Tokyo, on October 21 2013 → Mount Takao forest for recreational use (高尾山自然休養林). Records: in Shiretoko Five Lakes Aera, eastern Hokkaido, on August 29 2020.

Mount Usu

4 5
[4/5] near the K-1 Crater formed by the 2000 eruptions on August 25 2010.

Mount Koma

6 7 8
[6-8] on the southwestern slope of Mount Koma (駒ヶ岳 ⇒ flora), southern Japan, on August 4 2015.

Others

Records: in Makomanai forest preserve for health on November 12 2022.