Riverweed - Riverweed

Japanese: カワヂシャ - かわぢしゃ
Riverweed - Riverweed

A biennial plant of the Scrophulariaceae family (APG classification: Plantaginaceae). The stems are erect, 20-60 cm tall, and round and soft. The leaves are opposite and lanceolate, with the base embracing the stem. From May to June, several thin inflorescences emerge from the leaf axils and bloom sparsely. The corolla is white with purple streaks, deeply lobed into four parts, and 4 mm in diameter. It grows in rice paddies and riverbanks, and is distributed from Honshu to Okinawa, Taiwan, China, Southeast Asia, and India. The name comes from the fact that the shape of the leaves resembles that of lettuce of the Asteraceae family, and they are edible when young.

[Taeko Kubo August 20, 2021]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

ゴマノハグサ科(APG分類:オオバコ科)の越年草。茎は直立して高さ20~60センチメートル、円く柔らかい。葉は対生し披針(ひしん)形で基部は茎を抱く。5~6月、葉腋(ようえき)から数本の細い花序を出しまばらに花をつける。花冠は白色で紫色の筋(すじ)があり、深く4裂して径4ミリメートル。水田、川原などに生え、本州から沖縄、台湾、中国、東南アジア、インドに分布する。名は、葉の形がキク科のチシャに似ていて、若いうちは食べられることによる。

[久保多恵子 2021年8月20日]

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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