A perennial plant of the Ranunculaceae family (APG classification: Ranunculaceae). The stem is erect, 30-50 cm tall, and well branched at the top. The basal leaves are trifoliate once. The yellow flowers are about 1 cm in diameter and grow in sparse racemes from April to July. A large number of flattened achenes gather together to form a confetti-like aggregate fruit. A plant commonly found in wet and marshy areas throughout Japan, with many variations. A weed in rice paddies. The Yamakitsunenobotan variety has many hairs that run obliquely up the stem and grows in mountainous areas. A closely related species, Himekitsunenobotan R. yaegatakensis Masam., which is significantly smaller overall, is distributed on Yakushima Island. It is also distinguished from the closely related species Umanoashigata (buttercup) by its trifoliate leaves, small flowers, and flattened achenes. [Yuichi Kadota March 18, 2020] [References] |From April to July, yellow flowers about 1 cm in diameter appear in sparse racemes. The stems are upright and well-branched at the top. ©Shogakukan Photo by Masatoshi Hirose "> Foxglove ©Kanzo Otawa "> Foxglove (specimen drawing) Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
キンポウゲ科(APG分類:キンポウゲ科)の多年草。茎は直立し高さ30~50センチメートル、上部でよく分枝する。根出葉は1回3出複葉。花は黄色、直径約1センチメートルで、4~7月、まばらな総状花序につく。扁平(へんぺい)な痩果(そうか)が多数集まって、金平糖(こんぺいとう)状の集合果となる。日本全土の水湿地に普通にみられ、変異の多い植物。水田の雑草。変種ヤマキツネノボタンは茎に斜上する毛が多く、山地に生える。屋久(やく)島には、全体が著しく小さい近縁の別種ヒメキツネノボタンR. yaegatakensis Masam.が分布する。また近縁の別種ウマノアシガタ(キンポウゲ)とは、葉が3出複葉で、花が小さく、痩果が扁平であることで区別される。 [門田裕一 2020年3月18日] [参照項目] |4~7月、直径約1cmの黄色花がまばらな総状花序につく。茎は直立し、上部でよく分枝する©Shogakukan 撮影/広瀬雅敏"> キツネノボタン ©大多和鐘三"> キツネノボタン〔標本画〕 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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