Apodicarpum ikenoi Makino

Japanese: エキサイゼリ（英語表記）Apodicarpum ikenoi Makino

A rare perennial plant of the Umbelliferae family that grows in wetlands (illustration). It is also called Obazeri. In addition to fibrous roots, there are partially thickened storage roots underground that store nutrients. The plant is hairless overall, and the stem is about 30 cm tall, with some branching at the top. The leaves are pinnately compound with petioles, alternate on the stem, and there are 7 to 9 leaflets that are roughly ovate and 1 to 3 cm long. In May and June, compound umbels are produced at the ends of the branches, and small white flowers bloom. There are several elongated involucres at the base of the inflorescence. The flowers are white with 5 petals and no developed calyx.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

湿地に生えるセリ科のごくまれな多年草（イラスト）。オバゼリともいう。地下にはひげ根の他に，一部肥厚して栄養を蓄える貯蔵根がある。全体に毛がなく，茎は高さ30cm内外，上部で多少，分枝する。葉は羽状複葉で葉柄があり，茎に互生し，小葉は7～9個あってほぼ卵形，長さ1～3cm。5～6月頃，枝先に複散形花序を作り，小さい白い花をつける。花序の基部には数個の細長い総苞片がある。花は白色で5弁があり，萼は発達しない。

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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