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(upload on June 24 2018) [ 日本語 | English ]

Caulophyllum Michx. (ルイヨウボタン) Ruiyoubotan (ルイヨウボタン, 類葉牡丹), Asian blue cohosh Life form: deciduous, perennial forb ≈ 40-70 cm tall Distribution: China - Korea - Japan - Sakhalin - Ussuri Habitat: deciduous forests

Chromosome number: 2n = 16 Synonyms: Leontice robusta (Maxim.) Diels Caulophyllum thalictroides (L.) Michx. ssp. robustum (Maxim.) Kitam.

Caulophyllum robustum in Hokkaido

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[1-3] close to Nopporo Forest Park, Kita-Hiroshima City, on June 27 2020.