A deciduous tall tree of the Rosaceae family that grows in mountainous areas, it is named after the strikingly white undersides of its leaves (illustration). The bark is black-brown. The leaves are alternate, broadly elliptical to oval, with sparse sawtooth edges, green and softly hairy on the upper side, and densely covered with white fluff on the underside. Flowers bloom in clusters on short branches in May and June. There are five white petals with rounded tips that curl back when they open. The fruit is elliptical, about 1 cm long, and ripens red in autumn. It is found in Honshu, Shikoku, and Kyushu. It has no particular use, but the fruit is edible. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
バラ科の落葉高木で,山地に生じ,葉の裏面がいちじるしく白くみえるので,この名がある(イラスト)。樹皮は黒褐色。葉は互生して,広楕円形から卵円形,ふちにまばらな鋸歯があり,葉の表は緑色で軟毛があり,裏面には白い綿毛が密に生えている。花は5,6月ごろ,短い枝に集まって咲く。花弁は5枚で白く,先は円く,開くとそりかえる。果実は楕円形で,長さは約1cm,秋に赤く熟する。本州,四国,九州に分布。これといった利用はされていないが,果実は食べられる。
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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