Agastache rugosa (Fisch.et Mey.) O.Kuntze

Japanese: カワミドリ（英語表記）Agastache rugosa (Fisch.et Mey.) O.Kuntze

A perennial plant of the Lamiaceae family that grows in mountain grasslands and is about 1m tall (illustration). The entire plant has a distinctive mint-like scent. The stem is square and branches at the top, and has fine powdery white hairs on the undersides of the leaves. The leaves grow opposite each other, with 1-4cm petioles, broad ovate blades 5-10cm long, pointed tips, sawtooth edges, and round or heart-shaped bases. From summer to autumn, cylindrical inflorescences are produced at the ends of the branches at the top of the stems, and densely packed magenta or bluish purple flowers are produced. The inflorescences are cylindrical, 5-15cm long and about 2cm wide.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

山の草地に生える高さ1mほどのシソ科の多年草（イラスト）。全草にハッカに似た独特の香りがある。茎は四角形，上部で分枝し，葉の裏と共に粉白色の微細な毛がある。葉は対生し，1～4cmの葉柄があり，葉身は広卵形で長さ5～10cm，先がとがり，縁には鋸歯があり，基部は円形または心形となる。夏から秋のころ茎の上部の枝先に円柱形の花序を作って，密に紅紫色または青紫色の花をつける。花穂は長さ5～15cm，幅約2cmくらいで円柱状となる。

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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