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''Potentilla erecta'' (syn. ''Tormentilla erecta'', ''Potentilla laeta'', ''Potentilla tormentilla'', known as the (common) tormentil, septfoil〔(Septfoil - definition of Septfoil by the Free Online Dictionary, Thesaurus and Encyclopedia )〕 or erect cinquefoil ) is a herbaceous perennial plant belonging to the rose family (Rosaceae). ==Characteristics== ''Potentilla erecta'' is a low, clump-forming plant with slender, procumbent to arcuately upright stalks, growing tall and with non-rooting runners. It grows wild predominantly in Scandinavia, Europe, and western Asia() mostly on acid soils in a wide variety of habitats, such as mountains, heaths, meadows, sandy soils and dunes. This plant is flowering from May to August/September. There is one yellow, wide flower, growing at the tip of a long stalk. There are almost always four notched petals, each with a length between 3 and 6 mm. Four petals are rather uncommon in the rose family. The petals are somewhat longer than the sepals. There are 20–25 stamens. The radical leaves have a long petiole, while the leaves on the flowering stalks are usually sessile or with short petioles. The glossy leaves are alternate, ternate, consisting of three obovate leaflets with serrate margins. The paired stipules are leaflike and palmately lobed. There are 2–8 dry, inedible fruits. 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「Potentilla erecta」の詳細全文を読む スポンサード リンク
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