Trifolium arvense L.
  • Cos mhaideach

Cite taxon page as 'WFO (2021): Trifolium arvense L. Published on the Internet; Accessed on: 21 Jun 2021'

General Information

"Annual, erect, freely branched, 1–4 dm, the stems soft-hairy; petioles 4–10 mm, exceeded by the subulate tips of the stipules; lfls narrowly oblanceolate, 1–2 cm, serrulate only at the tip; heads densely fld, ovoid to cylindric, 1–3 cm, on peduncles 1–3 cm; cal densely villous with hairs to 2 mm, the tube 1.5–2 mm, the setaceous lobes 3–5 mm, surpassing and partly concealing the small, whitish or pinkish cor; 2n=14. Native of Eurasia and n. Afr., found as a casual weed of roadsides and waste places, especially in light, sandy soil, throughout much of the U.S. and s. Can. May–Sept."

  • Provided by: [C].New York Botanical Garden
    • Source: [
    • 1
    • ]. 


    10–40 cm hoch, ästig, dicht behaart. Blätter 3zählig, Teilblätter schmal-oval, bis 2,5 cm lang, behaart, fein gezähnt oder fast ganzrandig. Blüten zuerst weisslich, dann rötlich, ± sitzend. Kelch stark zottig behaart. Blütenstand eiförmig bis zy

  • Provided by: [B].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 2
    • ]. 


    6–8. Trockene Orte, sandige Äcker, kollin-montan(-subalpin). CH.

  • Provided by: [B].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 2
    • ]. 

    Distribution Map

    • Native distribution
    Found in
    • Europe Northern Europe Ireland

    Nationally Preferred Names

    Cos mhaideachIrishIE
    Hare’s-foot cloverEnglishIE

    Other Local Names

    Trèfle des champsFrenchCH
    Traifegl d'erRaeto-RomanceCH
    Trifoglio arvenseItalianCH


    • 1 "Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp."
    • 2 Flora Helvetica, Illustrierte Flora der Schweiz. K. Lauber, G. Wagner, A. Gygax, Haupt Verlag, 2018. ISBN-978-3-258-08047-5

     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora Helvetica – Illustrierte Flora der Schweiz
    Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
    • B All Rights Reserved
    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.
    • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Irish Vernacular Names
    • D All Rights Reserved
    World Flora Online consortium
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).