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わが国本州、中部地方以北から北海道、それに大峰山や石鎚山、千島列島に分布しています。高山帯の風当たりの強い岩場に生え、高さは10〜30センチになります。根生葉はほぼ円形で茎を抱きます。7月から8月ごろ、黄色い花を咲かせます。花弁の先はへこみ、オレンジ色の斑が印象的です。
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バラ科ダイコウソウ属の多年草で、学名は Geum calthaefolium var. nipponicum。英名はありません。
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"Miyama-daikon-so" (Geum calthaefolium var. nipponicum) belongs to Rosaceae (the Rose family). It is a perennial herb that is distributed northward from Chubu district of Honshu to Hokkaido in Japan, and the Kuril Islands. This herb grows in alpine windy scrags and can reach 10-30 cm in height. The basal leaves are round and enfold stem. The yellow flowers come in July through August. The petals are shallowly emarginate and have orange mottles.
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[上・中1] 岐阜県高山市丹生川町「乗鞍岳」にて、2007年07月31日撮影。 [中2] 同上にて、2002年08月17日撮影。 [中3] 長野県山ノ内町「東舘山高山植物園」にて、2003年06月15日撮影。 [中4〜中6] 長野県宮田村「木曽駒ヶ岳」にて、2015年08月02日撮影。 [中7・中8] 岩手県遠野市「早池峰山」にて、2017年07月20日撮影。 [中9〜中21] 秋田県仙北市「秋田駒ヶ岳」にて、2019年07月09日撮影。 [中22〜23・下] 同上にて、2022年06月26日撮影。
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