Nepeta subsessilis Maxim.

Japanese: ミソガワソウ（英語表記）Nepeta subsessilis Maxim.

A perennial herb of the Lamiaceae family that grows in colonies in grasslands in deep mountains (illustration). The stem is square, upright, 50-100cm tall, and covered with fine hairs. The leaves are opposite, long ovate, 6-14cm long, serrated, and pointed at the tip. The flowers are indigo-purple in color and appear in large numbers on spikes at the ends of the stems in July and August. The calyx is tubular with 15 veins and has five lobes at the tip, sharply pointing. The corolla is 25-30mm long, two-lipped with a long tube, the lower lip is slightly larger, it has three lobes, and the central lobe has purple spots. There are four stamens.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

深山の草地に群生するシソ科の多年草（イラスト）。茎は四角形で直立し，高さ50～100cm，全体に微細な毛がある。葉は対生し，長卵形で長さ6～14cm，鋸歯があって先はとがる。花は7～8月ころに茎の先端に花穂を作って多数つき，藍紫色。萼は筒状で15脈があり，先は5裂してするどくとがる。花冠は長さ25～30mm，長い筒のある2唇形で，下唇は少し大きく，3裂して中央裂片には紫色の斑点がある。おしべは4本。

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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