An annual naturalized plant of the Caryophyllaceae family that grows on roadsides and in cultivated fields. The stem branches at the base, then rises, forming a clump 20-30 cm tall. The leaves are linear, have stipules at the base, and grow opposite each other, but the axils have about 10-20 leaves on short branches that appear to grow in whorls. From June to August, a large cyme blooms at the end of the stem. The flowers are small, about 5 mm in diameter, with white petals that are not incised. There are five styles and five to ten stamens. The fruit is ovate with five lobes at the end. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
道端や耕地に生えるナデシコ科の一年生の帰化植物。茎は基部で枝分れした後,立ち上がり,高さ20~30cmの株立ちになる。葉は線形で,基部に托葉があり,対生するが,葉腋(ようえき)には短い枝についた葉が10~20枚ほどあり,輪生しているように見える。6~8月,茎の先に大きな集散花序をつける。花は直径5mmほどの小さなもので,花弁は白色,切れ込みはない。花柱は5本,おしべは5本から10本。果実は卵形で,先は5裂する。
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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