Japanese pine bark - Japanese pine bark

Japanese: カワラマツバ - かわらまつば

A perennial plant of the Rubiaceae family (APG classification: Rubiaceae). The stem is 60-80 cm tall. The leaves are thin and 1-4 cm long. There are 6-12 leaves in whorls, but there are only two true leaves and the rest are leaf-like leaves formed by dividing stipules. The flowers are white and bloom in summer. They grow in clusters in sunny areas and are distributed in Japan and Korea. They are named after the fact that they are often found on riverbanks and their leaves resemble pine needles. Varieties with yellow flowers are called Kibanakawamatsuba, and varieties with pale yellow flowers are called Ezonokawamatsuba.

[Makiyuki Fukuoka, May 21, 2021]

Japanese pineapple
The leaves are thin and arranged in whorls of 6 to 12. They grow in clusters in sunny areas and bloom white flowers in summer. The name comes from the fact that they are often found on riverbanks and their leaves resemble pine needles. ©Seishohmaru ">

Japanese pineapple

Yellow pineapple
A variety of kawaramatsuba with yellow flowers. The leaves are thin and pine-like. They grow in clusters in sunny areas and bloom yellow flowers in summer. ©Shogakukan Photo by Fujio Aoyama ">

Yellow pineapple

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

アカネ科（APG分類：アカネ科）の多年草。茎は高さ60～80センチメートル。葉は細く、長さ1～4センチメートル。6～12枚の葉が輪生するが、真の葉は2枚で、他は托葉(たくよう)が分裂し葉状となったもの。花は白く、夏に開く。向陽地に群生し、日本と朝鮮に分布する。名は、河原に多く、葉が松葉に似ることによる。花が黄色い品種をキバナカワラマツバ、淡黄色の品種をエゾノカワラマツバという。

［福岡誠行　2021年5月21日］

カワラマツバ
葉は細く、6～12枚の葉が輪生。向陽地に群生し、夏に白色の花を開く。名は、河原に多く、葉が松葉に似ることによる©Seishohmaru">

カワラマツバ

キバナカワラマツバ

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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