…A perennial herb of the Houttuynia family that grows in colonies near waters and in marshes in warm regions (illustration). The lower halves of the top few leaves of the stem are white and stand out. One theory is that the name "hankesho" (half-makeup) comes from this leaf color, while another theory is that the name comes from the fact that these leaves grow around the 11th day after the summer solstice. It is also called Katashirogusa (one-sided white grass). The rhizome is long and creeping, and the aboveground stem is upright, 0.5 to 1 m tall. The whole plant is soft. The leaves are alternate, long oval, unserrated, 5 to 15 cm long, and 4 to 8 cm wide. … *Some of the terminology that mentions "Saururus" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…暖地の水辺や湿地に群生するドクダミ科の多年草(イラスト)。茎の上部の数枚の葉は下半部が白色となって目だつ。一説にはこの葉色から〈半化粧〉の名があるといい,また一説には,この葉を半夏生(夏至から11日目)のころにつけるところからこの名があるともいう。カタシログサ(片白草)ともいう。根茎は長くはい,地上茎は直立して,高さ0.5~1m。全体が柔らかい。葉は互生し,長卵形で鋸歯がなく,長さ5~15cm,幅4~8cm。… ※「Saururus」について言及している用語解説の一部を掲載しています。 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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