thinker's weed

Japanese: thinker's weed（英語表記）thinkersweed

...It is distributed in Nagano Prefecture, northeastern China, and the Ussuri region. The Triosteum genus (English names: horse gentian, feverwort, thinker's weed, wild ipecac) has four species each distributed separately in East Asia and North America. The leaves of the Triosteum pinnatifidum Maxim. are pinnately lobed, and the flowers are spike-shaped at the end of the stem, with a corolla 1 cm long. ...

*Some of the terminology that mentions "thinker's weed" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…長野県と中国東北部，ウスリー地方などに分布する。　ツキヌキソウ属Triosteum(英名horse gentian,feverwort,thinker’s weed,wild ipecac)は東アジアと北アメリカに4種ずつが隔離分布する。ホザキツキヌキソウT.pinnatifidum Maxim.は葉が羽状に中裂し，花は茎の先に穂状につき，花冠は長さ1cm。…

※「thinker's weed」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典第２版について | 情報

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