sweet rush

…It is a summer-green perennial plant of the Araceae family, the whole plant is fragrant, and its rhizome is widely used for medicinal purposes in China under the name of white taro, and in Europe and the United States under the name of rhizoma calami (illustration). Its English names are sweet flag, (sweet) calamus, sweet root, and sweet rush. The rhizome is thick, creeps horizontally over the ground, and produces two alternate rows of leaves. …

*Some of the terminology that mentions "sweet rush" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…サトイモ科の夏緑の多年草で全草に芳香があり，根茎を漢方では白菖，欧米ではrhizoma calamiの名で広く薬用にされていた（イラスト）。英名はsweet flag，(sweet) calamus,sweet root,sweet rush。根茎は太く，地表を横にはい，2列互生に葉を出す。…

※「sweet rush」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