Sempervivum tectorum L.
  • Sp. Pl. : 464 (1753)
  • House-leek

Cite taxon page as 'WFO (2023): Sempervivum tectorum L. Published on the Internet; Accessed on: 28 Jan 2023'

General Information

Leaves: rosettes usually open, 4-10 cm diam., producing offsets attached to parental plants by stout stolons; blade 1-1.5 cm wide, apex stoutly mucronate, surfaces usually glabrous, sometimes sparingly hairy (some cultivars are hairy). Inflorescences erect, flat-topped to thyrsiform cymes, 10-40(-100+)-flowered, bracteate, (10-)20-30(-50) cm, usually 5-15 cm diam.; bracts 1 per flower, clasping at base, ovate-lanceolate, base narrow. Flowers: petals strongly reflexed at anthesis, 9-12 mm, margins entire, abaxially pubescent; stamens red to purple. 2n = (36, 40), 72.

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

    Plants with axillary stolons; rosette-lvs obovate or oblong-lanceolate, with a pungent mucro, narrowed to the base, ciliate, otherwise glabrous; flowering stems 3–6 dm; cauline lvs narrowly obovate to oblong, glandular-hairy; infl very pubescent, freely branched into several spreading cymes; fls mostly 12–16-merous; pet pink-purple, 1 cm, spreading, entire; 2n=36, 72. Native of Europe, sometimes escaped from cult. in our range, esp. in N. Engl. July–Sept.

  • Provided by: [C].Manual of Vascular Plants of Northeastern US and Canada
    • Source: [
    • 3
    • ]. 


    10–60 cm hoch. Wie bei allen Sempervivum-Arten Stängel dicht beblättert, mit grundständiger Rosette. Rosettenblätter sehr starr, auf den Flächen kahl, am Rand bewimpert, meist mit roten Spitzen, bis 5 cm lang. Blüten trüb-hellrot (wenn weiss

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


    7–8. Felsen, Mauern, Trockenwiesen, kollin-alpin. A, J, vereinzelt M.

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

    Distribution Map

    • Introduced distribution
    Introduced into
    • Europe Northern Europe Ireland


    Nationally Preferred Names


    Other Local Names

    Lus an tóiteá(i)nIrishIE
    Tinicín (or Rinicín)IrishIE
    Semprevivo maggioreItalianCH
    Luibh (or Lus) an tóiteainIrishIE
    Teinne eaglaIrishIE
    Buachaill tigheIrishIE
    Biadh an tsionnaighIrishIE
    Norp (Nuirp)IrishIE
    Common houseleek
    Joubarbe des toitsFrenchCH
    Semperviv da tetgRaeto-RomanceCH


     Information From

    World Flora Online Data. 2021.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    Manual of Vascular Plants of Northeastern US and Canada
    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
    Flora Helvetica – Illustrierte Flora der Schweiz
    Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
    • D All Rights Reserved
    Irish Vernacular Names
    • E All Rights Reserved
    World Flora Online Consortium
    World Flora Online Data. 2017.
    • F CC0 1.0 Universal (CC0 1.0).