Equisetum sylvaticum L.
  • Sp. Pl.
  • Kırkanahtar


Cite taxon page as 'WFO (2020): Equisetum sylvaticum L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001108924. Accessed on: 03 Jul 2020'

General Information

Plants large or medium-sized. Rhizome erect or creeping, blackish brown, nodes and roots with sparse long yellowish brown trichomes or glabrous. Aerial stem annual, dimorphic, fertile and sterile stems appearing simultaneously. Fertile stems reddish brown, sometimes straw-colored, 20-30 cm tall, 2-2.5 mm in diam. at middle, branched eventually, 10-14-ridged; ridges glabrous; internodes 3-4 cm; sheath tubes reddish brown on upper portion, straw-colored in lower portion, 1.1-1.5 cm, with 3 or 4 broad sheath teeth; sheath teeth reddish brown, ovate-deltoid, 0.5-1.1 mm, membranous, with shallow grooves abaxially. Fertile stems remaining alive after spores shed. Sterile stems grayish green, 30-70 cm, 2.5-5.5 mm in diam. at middle, well branched in whorls, unbranched below middle, main stem 10-16-ridged; ridges edged abaxially and with bristlelike protuberances on sides; each ridge often with a row of tubercles; internodes 4.5-6 cm; sheath tubes reddish brown on upper portion, grayish green on lower portion, ca. 6 mm, with 3 or 4 broad sheath teeth; sheath teeth reddish brown, ovate-deltoid, ca. 0.6 cm, membranous, persistent. Lateral branches slender, complanate, 3-8-ridged; ridges with spine-shaped protuberances or glabrous abaxially; sheath teeth open. Strobilus terete, 1.5-2.5 cm, 5-7 mm in diam., apex blunt; stalk prolonged when mature and 3-4.5 cm. 2n = 216.

  • Provided by: [D].Flora Of CHina @ efloras.org
    • Source: [
    • 1
    • ]. 

    Aerial stems dimorphic; vegetative stems brownish to green, branched, 25--70 cm; hollow center 1/6--1/3 stem diam. Sheaths squarish in face view, 3--6 × 2.5--6 mm; teeth reddish, 8--18, papery, 3--10 mm, coherent in 3--4 large groups. Branches in regular whorls, delicate, arching, branched, solid; ridges 3--4; valleys channeled; 1st internode of each branch longer than subtending stem sheath; sheath teeth attenuate. Fertile stems brown, with stomates, initially unbranched, persisting and becoming branched and green after spore discharge. 2 n =216.

  • Provided by: [F].Flora of North America @ efloras.org
    • Source: [
    • 2
    • ]. 

    "Stems annual, dimorphic, the sterile ones 3–7 dm, 1.5–3 mm thick, mostly 10–18-ridged, each ridge with 2 rows of sharp hooked spinules, the stomates in 2 bands in the furrows, the central cavity larger than the vallecular ones and most more than half the diameter of the stem, the sheaths 1–2 cm, basally green, distally brown, with persistent, irregularly connate brown teeth; branches regularly whorled, solid, 4–5-angled, commonly again branched; the first internode commonly longer than the associated sheath of the main stem; fertile stems subprecocious, at first simple and pale, later producing whorls of green, mostly compound branches and often themselves becoming green; cones long-peduncled, 1.5–3 cm, deciduous, not apiculate. Cool moist woods; circumboreal, in Amer. s. to Md., W.Va., Ky., and Io."

  • Provided by: [E].New York Botanical Garden
    • Source: [
    • 3
    • ]. 

    Morphology

    Çokyıllık otsu bitkiler. Rizomları dik veya yükselici, siyahımsı kahverengi, tüysüz veya tüylü; tüyler sarımsı kahverengi. Ana gövde biryıllık, iki biçimli, düğümlerde dallanmış (yan gövde). Yeşil ana gövdeler verimsiz, 10-60 cm boyunda, 2-2,5 cm çapında, soluk yeşil, 10-18 oluklu; kın yeşil, 1-2 cm uzunluğunda, dişler tersyumurtamsı veya üç-köşeli, 3-6 büyük diş oluşturacak şekilde birleşmiş, uçta kahverengi, çok damarlı, kalıcı. Yeşil yan gövdeler bir kez daha dallanmış, koyu yeşil, 5-10 cm uzunluğunda, 3-4 oluklu. Ana gövdedeki öz boşluğu gövdenin yarısı kadar. Kahverengi ana gövde (verimli) yeşil (verimsiz) gövdeler ile aynı zamanda oluşur, 20-45 cm boyunda, düğümlerde dallanmış (yan gövdeli), kırmızımsı kahverengi; kın 1-1,5 cm uzunluğunda, dişler tersyumurtamsı veya üç-köşeli, 3-6 büyük diş oluşturacak şekilde birleşmiş, kırmızımsı kahverengi, kalıcı. Kahverengi yan gövdeler bir kez daha dallanmış. Kozalak kahverengi, kahverengi gövdelerin ucunda, tek, silindirik, 1-2,5 × 0,5-0,8 cm.

  • Provided by: [B].Resimli Türkiye Florası (the Illustrated Flora of Turkey)
    • Nationally Preferred Names

      NameLanguageCountry
      KırkanahtarTurkishTR

      Other Local Names

      NameLanguageCountry
      Wood horsetail, prêle des bois

       Information From

      Equisetaceae
      World Flora Online Data. 2017.
      • A CC0 1.0 Universal (CC0 1.0).
      Resimli Türkiye Florası (the Illustrated Flora of Turkey)
      http://www.turkiyeflorasi.org.tr
      Güner, A., Kandemir, A., Menemen, Y., Yıldırım, H., Aslan, S., Ekşi, G., Güner, I. ve Çimen, A.Ö. (edlr.) (2018). Resimli Türkiye Florası, Cilt 2. ANG Vakfı Nezahat Gökyiğit Botanik Bahçesi Yayınları. İstanbul.
      • B All Rights Reserved
      • C Resimli Türkiye Florası (the Illustrated Flora of Turkey).
      Flora Of CHina @ efloras.org
      http://www.efloras.org/flora_page.aspx?flora_id=2
      'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
      • D Missouri Botanical Garden
      New York Botanical Garden
      Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
      • E Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
      Flora of North America @ efloras.org
      http://www.efloras.org/flora_page.aspx?flora_id=1
      'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
      • F Flora of North America Association
      World Flora Online consortium
      http://www.worldfloraonline.org/organisation/WFO
      World Flora Online Data. 2018.
      • G CC0 1.0 Universal (CC0 1.0).