Daisy-fleabane (English spelling)

Japanese: ヒメジョオン(姫女菀) - ヒメジョオン（英語表記）daisy‐fleabane

An annual or biennial plant of the Asteraceae family native to North America, commonly found on roadsides and wastelands (illustration). It was introduced to Japan around the time of the Meiji Restoration and is now found wild in many places. Young shoots can be boiled and eaten as a dip or salad. In North America, it was used as a medicine for stones and as a diuretic. The stems are upright and can reach a height of 1.5m. The basal leaves have long stalks, are ovate, and have coarse, sharp serrated edges. The stem leaves are oblanceolate, alternate, thin, and hairy on both sides. The flowering season is June to October. The stems branch at the top and produce numerous flower heads about 2cm in diameter.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

道ばたや荒地に多い北アメリカ原産のキク科の一年草ないし越年草（イラスト）。明治維新前後に渡来し，今では各地で野生状態となっている。若芽はゆでて浸し物，あえ物として食用にできる。北アメリカでは結石の薬または利尿剤として使われた。茎は直立し，高さ1.5mに達する。根生葉は長柄を有し，卵形で，あらく鋭い鋸歯縁となる。茎葉は倒披針形で，互生し，質はうすく，両面に毛がある。花期は6～10月。茎上部で分枝し，径2cmくらいの頭花を多数つける。

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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