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(First upload on December 17 2011. Last on February 16 2016) [ 日本語 | English ]

Boehmeria Jacq. (カラムシ) Kusakoakaso (クサコアカソ, 草小赤麻) Marubaakaso (マルバアカソ, 丸葉赤麻) Lifeform: perennial forb < 1.5 m high → B. spicata (Thunb.) Thunb. (コアカソ), whici is not distributed in Hokkaido, is a shrub Distribution: China - Japan Habitat: sunny sites, such as roadsides, and forest edges Flora on Mount Usu Field trip: Nature on lakes, volcanoes, sea and forests (海と湖と火山と森林の自然)

Leaf: non-trifid top ↔ B. silvestrii Chromosome number: 2n = 14 Synonyms: Boehmeria tricuspis (Hance) Makino var. unicuspis Makino. When suported, this species is a variety of B. tricuspis (Akaso, アカソ) Boehmeria tricuspis (Hance) Makino ssp. paraspicata (Nakai ex H. Hara) Kitam. Boehmeria paraspicata Nakai ex H. Hara

Boehmeria gracilis in Hokkaido

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Mount Usu, Hokkaido

1 2 3
[1/2] on the caldera rim of Mount Usu on August 8 2011. The plant was a bit bloodless. [3] at a small botanic garaden in Tomakomai Experimental Forest on Aguust 23 2012
4 5
[4/5] in Tsukiura Forest Park, closed to Mount Usu, faced to Toya Lake on September 15 2015.