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''Arenaria norvegica'', also known as Arctic, English or Norwegian sandwort, is a low growing plant in the pink family, Caryophyllaceae, found in northwest Europe. The chromosome number is 2n=80. There are two recognised subspecies.〔(Flora of NW Europe )〕 ==Description== ''A. norvegica'' is a much branched, low-growing plant growing up to six centimetres tall. The midrib of the leaves is indistinct and the margins glabrous only in the lower third which distinguishes it from the rather similar ''Arenaria ciliata''.〔 ;''Arenaria norvegica'' subsp. ''anglica'' ''A. norvegica'' subsp. ''anglica'' is an annual or biennial herb with few non-flowering shoots. The leaves are opposite, narrowly ovate or elliptic. The flowers are eleven to twenty-three millimetres in diameter, have five white petals and three styles.〔 The plant flowers from May to October.〔(Species Action Plan )〕 ;''Arenaria norvegica subsp. norvegica'' ''A. norvegica'' subsp. ''norvegica'' is a perennial herb with many non-flowering shoots. The leaves are obovate and the white flowers about ten centimetres across with five petals and three to five styles.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Arenaria norvegica」の詳細全文を読む スポンサード リンク
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