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Cardamine douglassii : ウィキペディア英語版 | Cardamine douglassii
''Cardamine douglassii'' (known by the common names Limestone Bittercress and Purple Cress) is a perennial forb native to the eastern and central United States as well as the Province in Ontario in Canada,〔(【引用サイトリンク】url=http://plants.usda.gov/core/profile?symbol=CADO ) USDA, NRCS. 2014. The PLANTS Database (http://plants.usda.gov). National Plant Data Team, Greensboro, NC 27401-4901 USA.〕 that produces white to pink or purple flowers in early spring. ==Description== ''Cardamine douglassii'' has an erect unbranched stem which is 10 to 25 centimeters tall, and sparsely to densely hairy. The basal leaves are simple, heart shaped or round, 5 to 15 centimeters, borne on 4 to 12 centimeter long petioles. There are 3 to 8 oblong to lanceolate leaves on the stem, which are 2 to 5 centimeters long and 5 to 25 millimeters wide. The margins may be smooth or coarsely toothed. The flowers are borne in a raceme. The petals are 7 to 15 millimeters long and 3 to 5 millimeters wide. The fruit is linear, 1.5 to 4 centimeters long and 1.5 to 2 millimeters wide.〔(【引用サイトリンク】url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242416230 ) 'eFloras (2008). Published on the Internet (http://www.efloras.org). Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.〕
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「Cardamine douglassii」の詳細全文を読む
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