Equisetum arvense L.
  • Sp. Pl.
  • Atkuyruğu

Cite taxon page as 'WFO (2020): Equisetum arvense L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0001108914. Accessed on: 12 Aug 2020'

General Information

Plants small to medium-sized. Rhizome ascending, erect, or creeping, blackish brown, nodes and roots with sparse long yellowish brown trichomes or glabrous. Aerial stem annual, dimorphic. Fertile stems appearing in spring earlier than sterile branches, yellowish brown, 5-35 cm tall, 3-5 mm in diam. at middle, not whorled, ridges inconspicuous, with dense grooves, internodes 2-6 cm; sheath castaneous or pale yellow, ca. 0.8 cm, only upper portion of sheath abaxially with a shallow groove; sheath teeth 9-12, castaneous, narrowly deltoid, 4-7 mm. Fertile stems dying back after spores shed (ephemeral). Sterile stems green, up to 40 cm, middle portion of main stem 1.5-3 mm, multiple whorled, below middle portion of main stem branched; internodes 2-3 cm; ridges arc-shaped abaxially, without edges, with cross grains, without tubercles; sheath green, long, narrow; sheath teeth 5 or 6, deltoid, middle portion blackish brown, margin membranous, light brown, persistent. Lateral branches slender, flattened, with 3 or 4 narrow and tall ridges, ridges abaxially with cross grains; sheath teeth 3-5, green, lanceolate, margin membranous, persistent. Strobilus terete, 1.8-4 cm, 0.9-1 cm in diam., apex blunt; stalk prolonged when mature and 3-6 cm. 2n = 216.

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

    Aerial stems dimorphic; vegetative stems green, branched, 2--60(--100) cm; hollow center 1/3--2/3 stem diam. Sheaths squarish in face view, 2--5(--10) × 2--5(--9) mm; teeth dark, 4--14, narrow, 1--3.5 mm, often cohering in pairs. Branches in regular whorls, ascending, solid; ridges 3--4; valleys channeled; 1st internode of each branch longer than subtending stem sheath; sheath teeth attenuate. Fertile stems brown, lacking stomates, unbranched, shorter than vegetative stems, with larger sheaths, fleshy, ephemeral. 2 n =ca. 216.

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

    "Stems annual, dimorphic, the sterile ones 1.5–6(–10) dm, 1.5–5 mm thick, (4–)10–14-ridged, with well developed vallecular cavities and small central cavity ca 1/4 the diameter of the stem; the stomates in 2 broad bands in the furrows, the sheath 5–10 mm, with persistent, brown, free or partly connate teeth 1.5–2 mm; branches regularly whorled at the middle and upper nodes, 3–4-angled, solid, sometimes again branched, the first internode longer than the associated stem- sheath; fertile stems whitish to brownish, precocious and soon withering, to 3 dm, simple, to 8 mm thick, their sheaths 14–20 mm, with large, partly connate teeth 5–9 mm; cones long-pedunculate, 0.5–3.5 cm, not apiculate. Cosmopolitan, somewhat weedy; in moist to moderately dry habitats throughout our range."

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


    Çokyıllık otsu bitkiler. Rizomlar dik veya yükselici, siyahımsı kahverengi, tüylü; tüyler sarımsı kahverengi. Ana gövde çokyıllık, iki biçimli. Yeşil ana gövde (verimsiz gövde) 15-75 cm boyunda, düğümlerde dallanmış (yan gövde), 0,5-1 cm çapında, yeşil, 5-20 oluklu; kın yeşilimsi, 0,5-1 cm uzunluğunda, uçta yeşilimsi siyah renkli dişli; dişler gövdedeki oluk sayısı kadar, üç-köşeli, sivri veya kısa kılçıksı, 2 damarlı, ortası siyah, kenarları beyaz zarımsı, kalıcı. Yan gövdeler koyu yeşil, 3-15 cm uzunluğunda, 3-4 oluklu. Ana gövdedeki öz boşluğu gövdenin yarısı kadar. Kahverengi gövdeler (verimli gövde) yeşil gövdelerden önce oluşur, 5-25 cm boyunda, kahverengi, düğümlerde dallanmamış; kın 1-3 cm uzunluğunda, koyu kahverengi, uçta sarımsı; dişler üç-köşeli, ortası siyahımsı kahverengi, kenarları beyaz zarımsı, kalıcı. Kozalak koyu kahverengi, kahverengi gövde ucunda tek, silindirik, 1-4 × 0,8-1,2 cm.

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


      Other Local Names

      Field horsetail, common horsetail, prêle des champs

       Information From

      World Flora Online Data. 2017.
      • A CC0 1.0 Universal (CC0 1.0).
      Resimli Türkiye Florası (the Illustrated Flora of Turkey)
      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).
      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.
      • D Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
      Flora of North America @ efloras.org
      '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.
      • E Flora of North America Association
      Flora Of CHina @ efloras.org
      '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.
      • F Missouri Botanical Garden
      World Flora Online consortium
      World Flora Online Data. 2018.
      • G CC0 1.0 Universal (CC0 1.0).
      International Union for Conservation of Nature
      IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
      • H All Rights Reserved
      International Union for Conservation of Nature v.3
      IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
      • I See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use