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Heliopsis gracilis : ウィキペディア英語版 | Heliopsis gracilis
''Heliopsis gracilis'' is a North American species of flowering plant in the family Asteraceae, known by the common names smooth oxeye and pinewoods oxeye.〔(''Heliopsis helianthoides''. ) USDA NRCS Plant Guide.〕 It is native the southeastern and south-central United States from eastern Texas to South Carolina.〔(Biota of North America Program 2014 county distribution map )〕 ''Heliopsis gracilis'' is a perennial herb up to tall, spreading by means of underground rhizomes. The plant generally produces 1-5 flower heads per stem. Each head contains 6-19 bright yellow ray florets surrounding 40 or more yellowish-brown disc florets. The fruit is an achene about 5 mm long. 〔(Flora of North America, Heliopsis gracilis Nuttall, 1840. Smooth or pinewoods oxeye )〕 ==References==
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「Heliopsis gracilis」の詳細全文を読む
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