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''Hieracium laevigatum'' or smooth hawkweed is a Eurasian plant species in the dandelion tribe within the sunflower family. It is widespread across much of Europe and western Asia.〔(Altervista Flora Italiana, Sparviere levigato Hieracium laevigatum Willd. )〕 It is very similar to ''Hieracium sabaudum'' and can be found on dry, more or less nutrient rich soil in light woods, grassy embankments and fields, or on walls. ''Hieracium laevigatum'' is an herb up to 60 cm (2 feet) tall, with leaves on the stem rather than in a rosette at the bottom. Leaves are lance-shaped, up to 10 cm (4 inches) long, with large teeth along the edge. One stalk branches toward the top, producing numerous flower heads. Each head has several ray flowers but no disc flowers.〔(Wilson, Linda M. 2007. Key to Identification of Invasive and Native Hawkweeds (''Hieracium'' spp.) in the Pacific Northwest. British Columbia Ministry of Forests and Range, Forest Practices Branch, Invasive Alien Plant Program ) includes line drawings and color photos of numerous species〕 ;Subspecies〔 *''Hieracium laevigatum'' subsp. ''achalzichiense'' (Üksip) Greuter *''Hieracium laevigatum'' subsp. ''acrifolium'' (Dahlst.) Zahn *''Hieracium laevigatum'' subsp. ''analogum'' (Boreau) Zahn *''Hieracium laevigatum'' subsp. ''auriglandulum'' (Wiinst.) Zahn *''Hieracium laevigatum'' subsp. ''boreanum'' (Boreau) Zahn *''Hieracium laevigatum'' subsp. ''calothyrsum'' (Murr) Dalla Torre & Sarnth. *''Hieracium laevigatum'' subsp. ''chaubardianum'' (Arv.-Touv.) Zahn *''Hieracium laevigatum'' subsp. ''coronopifolioides'' Zahn *''Hieracium laevigatum'' subsp. ''dechyi'' Koslovsky & Zahn *''Hieracium laevigatum'' subsp. ''deltophylloides'' Zahn *''Hieracium laevigatum'' subsp. ''deseglisei'' (Boreau) Zahn *''Hieracium laevigatum'' subsp. ''dryadeum'' (Boreau) Zahn *''Hieracium laevigatum'' subsp. ''echinodermum'' Zahn *''Hieracium laevigatum'' subsp. ''fagineum'' (Arv.-Touv.) Zahn *''Hieracium laevigatum'' subsp. ''ficifolium'' (Arv.-Touv.) Zahn *''Hieracium laevigatum'' subsp. ''flocciparum'' Schelk. & Zahn *''Hieracium laevigatum'' subsp. ''glareosum'' (Lönnr.) Greuter *''Hieracium laevigatum'' subsp. ''goriense'' Koslovsky & Zahn *''Hieracium laevigatum'' subsp. ''gothiciforme'' (Dahlst.) Zahn *''Hieracium laevigatum'' subsp. ''gothicum'' (Fr.) Čelak. *''Hieracium laevigatum'' subsp. ''grandidens'' Zahn *''Hieracium laevigatum'' subsp. ''hypopityforme'' (Üksip) Greuter *''Hieracium laevigatum'' subsp. ''knafii'' (Čelak.) Zahn *''Hieracium laevigatum'' subsp. ''laevigans'' Zahn *''Hieracium laevigatum'' subsp. ''leucothyrsum'' (Litv. & Zahn) Greuter *''Hieracium laevigatum'' subsp. ''lineatum'' (Dahlst.) Zahn *''Hieracium laevigatum'' subsp. ''macrolygodes'' Zahn *''Hieracium laevigatum'' subsp. ''magistri'' (Godr.) Zahn *''Hieracium laevigatum'' subsp. ''nivale'' (Froel.) Zahn *''Hieracium laevigatum'' subsp. ''perangustum'' (Dahlst.) Zahn *''Hieracium laevigatum'' subsp. ''pesianum'' (Arv.-Touv. & Belli) Zahn *''Hieracium laevigatum'' subsp. ''pictaviense'' (Sauzé & Maillard) Zahn *''Hieracium laevigatum'' subsp. ''pseudogothicum'' (Arv.-Touv.) Zahn *''Hieracium laevigatum'' subsp. ''retardatum'' Zahn *''Hieracium laevigatum'' subsp. ''revolii'' (Sudre) Zahn *''Hieracium laevigatum'' subsp. ''rigidum'' (Hartm.) Čelak. *''Hieracium laevigatum'' subsp. ''sagotii'' (Boreau) Zahn *''Hieracium laevigatum'' subsp. ''semiglobosum'' (Dahlst.) Zahn *''Hieracium laevigatum'' subsp. ''stricticaule'' (Boreau) Zahn *''Hieracium laevigatum'' subsp. ''subgracilipes'' Zahn *''Hieracium laevigatum'' subsp. ''tridentaticeps'' (Zahn) Zahn *''Hieracium laevigatum'' subsp. ''tridentatum'' (Fr.) Čelak. *''Hieracium laevigatum'' subsp. ''vendeanum'' (Boreau) Zahn *''Hieracium laevigatum'' subsp. ''vogesicola'' Zahn ==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「Hieracium laevigatum」の詳細全文を読む スポンサード リンク
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