Juncus bulbosus L.
  • Sp. Pl.
  • Bulbous rush

Cite taxon page as 'WFO (2021): Juncus bulbosus L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000776091. Accessed on: 19 Oct 2021'

General Information

Herbs, perennial, cespitose, often with basal bulblike swellings, occasionally appearing rhizomatous, 0.3--3 dm, to 10 dm when floating or submersed. Culms erect or decumbent and rooting at nodes, or floating, terete, 1--2 mm diam., smooth. Cataphylls 1, straw-colored, apex acute. Leaves: basal 1, cauline 0--1; auricles 0.4--1 mm, apex acute, scarious; blade terete, occasionally filiform, flaccid, forming carpets, 2--10 cm x 0.8--1.4 mm. Inflorescences terminal racemes of 1--8(--30) heads, or single head, 2--10 cm, branches erect; primary bract erect; heads 2--6(--15)-flowered, obconic, 4.5--6.5 mm diam. Flowers often forming bulbils; tepals pale brown, ovate to lanceolate or inner oblong, 2--3.6 mm, nearly equal, apex acute to obtuse; stamens 3 or 6, anthers 3/4 to equal filament length. Capsules equaling perianth or exserted (to 0.5 mm beyond tepals), chestnut brown, 1-locular, cylindric, 2.5--4 mm, apex obtuse proximal to beak, valves separating at dehiscence. Seeds ellipsoid, 0.5--0.6 mm, not tailed; body clear yellow-brown.

  • Provided by: [B].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    "Stems usually elongate, creeping or floating, producing several capillary lvs and a short flowering branch from the nodes; infl small, scarcely branched, with 1–6 obpyramidal glomerules of 3–10 fls each; fls eprophyllate; tep linear-oblong, acute, subequal, 3–3.5 mm; stamens 3(6); fr unilocular, trigonously oblong-prismatic, blunt or mucronulate, 3.2–4 mm; 2n=40. Shallow water and wet shores; N.S. and Nf.; Pacific coast; Europe. (J. supinus)"

  • Provided by: [G].New York Botanical Garden
    • Source: [
    • 2
    • ]. 


    Stängel 2–20 cm, niederliegend bis aufsteigend, weniger als 0,5 mm dick, in dichten Horsten, am Grund mit fadenförmigen Blättern und zwiebelartig verdickt (nur bei dieser J.-Art). Blütenstand ein endständiger, 2–10blütiger Kopf, dazu oft

  • Provided by: [A].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 3
    • ]. 


    6–8. Moorgräben, austrocknende Tümpel, kollin-montan. M, vereinzelt AN, JN und südliches TI.

  • Provided by: [A].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 3
    • ]. 

    Distribution Map

    • Native distribution
    Found in
    • Europe Northern Europe Ireland


    Nationally Preferred Names

    Bulbous rushEnglishIE
    Luachair bhleibeachIrishIE

    Other Local Names

    Bulbous rush
    Giunco bulbosoItalianCH
    Jonc bulbeuxFrenchCH


     Information From

    Flora Helvetica – Illustrierte Flora der Schweiz
    Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
    • A All Rights Reserved
    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.
    • B Flora of North America Association
    Irish Vernacular Names
    • C All Rights Reserved
    International Union for Conservation of Nature
    IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
    • D All Rights Reserved
    International Union for Conservation of Nature v.3
    IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
    • E See IUCN Terms and conditions of use http://www.iucnredlist.org/info/terms-of-use
    World Flora Online Data. 2017.
    • F CC0 1.0 Universal (CC0 1.0).
    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.
    • G Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    World Flora Online consortium
    World Flora Online Data. 2018.
    • H CC0 1.0 Universal (CC0 1.0).