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''Carex'' sect. ''Spirostachyae'' is a section of the genus ''Carex'', containing 38 species of sedge. Species in ''Carex'' sect. ''Spirostachyae'' share a suite of features, including the short internodes of the primary rhizomes, the presence of an antiligule, the leaf-like, sheathing bract at the base of the inflorescence, the presence of three stigmas in female flowers, and the shape of the seeds. The section is composed of two subsections, with differing edaphic preferences; subsection ''Elatae'' comprises species that lives on acidic soils, while those in subsection ''Spirostachyae'' live on basic or ultramafic soils.〔 The two sections also differ morphologically, with species in subsection ''Elatae'' having wider leaves, thicker stems and larger spikes, the lowest of which may hang downwards.〔 The centre of diversity of the group is in Europe and adjacent parts of Africa and Asia; a few species occur in Australia, Africa, South America and on oceanic islands.〔 The three species present in North America are introductions. ;Subsection ''Elatae'' (Kük.) Luceño & M. Escudero *''Carex aethiopica'' Schkuhr – South Africa *''Carex binervis'' Sm. – western Europe *''Carex borbonica'' Lam. – Mascarene Islands *''Carex boryana'' Schkuhr – Mascarene Islands *''Carex camposii'' Boiss. & Reut. – southern Spain *''Carex catharinensis'' Boeck. – southeastern Brazil *''Carex clavata'' Thunb. – South Africa *''Carex cyrtosaccus'' C. B. Clarke – Tanzania, Malawi *''Carex elgonensis'' Nelmes – Mount Elgon *''Carex fischeri'' K. Schum. – central Africa *''Carex fissirostris'' Ball – Atlas Mountains, Morocco *''Carex fuscula'' d'Urv. – Chile, Argentina *''Carex gunniana'' Boot. – southeastern Australia *''Carex helodes'' Link – southern Spain and Portugal, northern Morocco *''Carex hochstetteriana'' J. Gay ''ex'' Seub. – Azores *''Carex laevigata'' Sm. – western Europe, Morocco *''Carex petitiana'' A. Rich. – central Africa *''Carex lowei'' Bech. – Madeira *''Carex mairii'' Coss. & Germ. – France, Spain, northern Morocco *''Carex mannii'' E. A. Bruce – central Africa *''Carex mildbraediana'' Kük. – Rwanda, Burundi, Kenya *''Carex modesti'' M.Escudero, Martín-Bravo & Jim.Mejías – Tanzania *''Carex paulo-vargasii'' Luceño & Marín – Morocco *''Carex perraudieriana'' J. Gay – Canary Islands *''Carex punctata'' Gaud. – Europe, Morocco, western Asia *''Carex simensis'' Hochst. ''ex'' A. Rich. – central Africa *''Carex thouarsii'' Carmich. – Tristan da Cunha *''Carex vallis-rosetto'' K. Schum. – Kenya, Tanzania ;Subsection ''Spirostachyae'' *''Carex blakei'' Nelmes – southeastern Australia *''Carex burchelliana'' Boeck. – South Africa *''Carex diluta'' M. Bieb. – central and western Asia *''Carex distans'' L. – Europe, North Africa, central and western Asia *''Carex ecklonii'' Nees – South Africa *''Carex extensa'' Good. – Europe and Mediterranean Basin *''Carex idaea'' Greuter ''et al.'' – Crete *''Carex lainzii'' Luceño, E. Rico & T. Romero – central Spain *''Carex tasmanica'' Kük. – Tasmania *''Carex troodi'' Turril – Cyprus *''Carex vixdentata'' (Kük.) G. A. Wheeler – South America ==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「Carex sect. Spirostachyae」の詳細全文を読む スポンサード リンク
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