Shimobashira (Frost pillar) - Keiskea japonica

Japanese: シモバシラ(霜柱) - シモバシラ（英語表記）Keiskea japonica

A perennial plant of the Lamiaceae family, endemic to Japan. It grows under forests in mountainous areas in Honshu, Shikoku, and Kyushu west of the Kanto region. It is about 60 cm tall, has four ridges, and has broad lanceolate, acutely pointed leaves 10 to 20 cm long, arranged in pairs. The veins are covered with fine hairs, and the undersides have glandular dots. In autumn, it forms racemes at the tips of the stems and in the leaf axils, and produces many small white lip-shaped flowers on only one side. Its name comes from the fact that ice forms on the winter-dead stems, making them look like frost pillars.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

シソ科の多年草で，日本の特産種。関東地方以西の本州，四国および九州の山地の林下に生える。高さ 60cm程度で4稜があり，長さ 10～20cmの広披針形鋭尖頭の葉が対生する。葉脈上に細毛があり裏面には腺点がある。秋に，茎の先端および葉腋に総状花序をなして，白色小型の唇形花を片側にだけ多数つける。名称は冬枯れた茎に氷がついて霜柱のようになることによる。

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