Perillula reptans Maxim. - Perillula reptans Maxim.

Japanese: スズコウジュ(鈴香薷) - スズコウジュ（英語表記）Perillula reptans Maxim.

A perennial plant of the Lamiaceae family that grows in the shade of trees in the mountains (illustration). The underground stems spread horizontally and swell into small lumps in places. The stems are slightly upright at the bottom and erect at the top, thin and hairy, 20-30cm tall and sparsely branched. The leaves are opposite and have petioles, ovate, 2-4cm long, and have a few sawtooth edges. From August to October, sparse inflorescences about 10cm long appear at the top of the stem, and small white flowers bloom. The calyx is green and bell-shaped with five shallow lobes at the tip, and when it becomes a fruit it becomes slightly larger and slightly two-lipped.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

山の木陰に生えるシソ科の多年草（イラスト）。地下茎は横にはい，ところどころ小さな塊状にふくれる。茎は下部がややはって，上部は立ち上がり，細くて全体に毛があり，高さ20～30cmでまばらに分枝する。葉は対生して葉柄があり，卵形で長さ2～4cm，縁には少数の鋸歯がある。8～10月ころ，茎の頂に長さ10cm内外のまばらな花穂を出し，白色の小型の花をつける。萼は緑色，鐘形で先が浅く5裂し，果時には少し大きくなってやや2唇形となる。

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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