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ヨーロッパの北極海沿岸やアルプス、ロッキー山脈に分布しています。湿潤な岩場に生え、高さは5〜10センチほどになります。楕円形の葉はごく小さくロゼット状で、短い毛が生えています。7月ごろ、花茎を伸ばして赤紫色の花を咲かせます。花弁はへら状で、10本の雄しべがあります。わが国の「しこたんそう(Saxifraga cherlerioides var. rebunshirensis)」の近縁種です。
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ユキノシタ科ユキノシタ属の多年草で、学名は Saxifraga oppositifolia。英名は Purple saxifrage。
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The Purple saxifrage (Saxifraga oppositifolia) belongs to Saxifragaceae (the Saxifrage family). It is a perennial herb that is distributed along the Arctic coast of Europe, the Alps, and the Rocky Mountains in North America. This herb grows on moist rocks and can reach 5-10 cm in height. The elliptic leaves are tiny, rosette-shaped and have short hairs. Around July, the flower stalks are stretched to bloom magenta flowers. The petals are spatula-shaped and have 10 stamens. It is a closely related species of "Shikotan-so" (Saxifraga cherlerioides var. Rebunshirensis) in Japan.
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スイス・マイリンゲン「ハスリベルク高原」にて、2002年07月15日撮影。(photo by Jon Suehiro)
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