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''Helianthemum apenninum'', the white rock-rose, is a white-flowering rock rose found in dry grassy and rocky places across large parts of Europe. ''H. apenninum'' flowers from March to July, and may grow up to 50 cm tall. The flowers are pentamerous, up to 30 mm across, and are white with yellow centres and yellow stamens. The three outer sepals are hairy and striped; the 2 inner sepals are very small. The flowers grow in clusters of 3 to 10 on a stem. The leaves are linear to lance-shaped, 30 mm long, in opposite pairs. They are covered with greyish or whitish hairs, especially on the underside, and the edges are rolled under. ==See also== * List of early spring flowers * List of late spring flowers * List of early summer flowers 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「Helianthemum apenninum」の詳細全文を読む スポンサード リンク
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