Sempervivum tectorum L.

ISFS : 387100
Checklist : 1043170


Species description (© Flora Helvetica 2018)

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, dann auch Staubfäden hell), Durchmesser 2-3 cm. Kronblätter meist 12, allmählich zugespitzt, 2,5-4mal so lang wie die Kelchblätter.

Flowering period (© Flora Helvetica 2018)


Habitat and distribution inside Switzerland (© Flora Helvetica 2018)

Felsen, Mauern, Trockenwiesen / kollin-alpin / A, J, vereinzelt M

World distribution (© Flora Helvetica 2018)

Mittel- und südeuropäisch

Ecological indicator (© Landolt & al. 2010)



IUCN status

 Least concern

Distribution map


Before threshold year
After threshold year
Before and after threshold year


Validated observations
Observations waiting for validation
Occurrences from Atlas Welten & Sutter (1982) and supplements (1984, 1994) without confirmation in the Info Flora database since
Before threshold year
After threshold year
Not native / introduced / subspontaneous / escaped

Number of observations

Below the threshold number of observations
Above or equal the threshold number of observations

Habitat and distribution inside Switzerland

A, J, vereinzelt M

World distribution

Mittel- und südeuropäisch


Life form

Subfructicose chamaephyte


Habitats © Delarze & al. 2015

Less strictly linked to a specific habitat 4.1.2 - Kalkfels-Pionierflur des Gebirges (Karstfluren) (Drabo-Seslerion)
Less strictly linked to a specific habitat 4.1.4 - Silikatfelsgrusflur des Gebirges (Sedo-Scleranthion)
Less strictly linked to a specific habitat 7.2.1 - Trockenwarme Mauerflur (Centrantho-Parietarion)

bold Dominant species, influencing the appearance of the habitat
Character species Character species
Less strictly linked to a specific habitat Less strictly linked to a specific habitat

Ecological indicator values by © Landolt & al. (2010)

Soil factors Climatic factors Salinity tolerance
Humidity Value H 2 Light Value L 5 Salinity Index --
Reaction Value R 3 Temperature factor T 4
Nutriments value N 2 Continentality K 4
  • Ecological values legend
    Humidity Value H
    1very dry
    2moderatly dry
    3medium wet
    4very wet
    5submerged or underwater
    fplants living in running water
    umostly submerged plants
    vpartly submerged, partly floating plants
    whumidity moderately variable (± scale of 1-2)
    w+highly variable humidity (scale exceeding ± 2)
    Reaction Value R
    1Very acid (pH 2.5-5.5)
    2acid (pH 3.5-6.5)
    3lightly acid to neutral (pH 4.5-7.5)
    4neutral to basic (pH 5.5-8.5)
    5basic (pH 6-5 -> 8.5
    Nutriments value N
    1very low in nutrients
    2low in nutriments
    3medium-poor to medium-rich in nutrients
    4rich in nutriments
    5very rich in nutriments
    Salinity tolerance
    Light Value L
    1very shady
    3lighted areas
    5highly luminous
    Temperature factor T
    1alpine to nival stages (from the treeline to the snowline)
    1+suprasubalpine and upper subalpine levels (pine and larch forests)
    2subalpine level (coniferous forests without beeches up to the upper limit of spruces)
    2+lower subalpine and upper mountain stages
    3mountain level (beech and silver fir forests, in the central Alps Scots pine forests)
    3+lower mountain and upper hill levels
    4hill level (mixed deciduous oak forests)
    4+hot places, hill level
    5very hot places, hill level (only in the hottest places, typical of southern Europe)
    Continentality K
    1Atlantic (high air humidity, very low temperature variations, mild winters)
    2Sub-Atlantic (high air humidity, low temperature variations, relatively mild winters)
    3sub-Atlantic to subcontinental (average air humidity, moderately variable temperature, slightly low winter temperatures)
    4subcontinental (low air humidity, large temperature variations, rather cold winters)
    5continental (very low air humidity, very large temperature variations, cold winters)


Accepted Name (Checklist 2017)

Sempervivum tectorum L.

Vernacular name

Deutscher Name :

Dach-Hauswurz, Echte Hauswurz

Nom français :

Joubarbe des toits

Nome italiano :

Semprevivo maggiore

Match with other reference books

Relation Nom Book No
=Sempervivum tectorum L.Checklist 2017387100
=Sempervivum tectorum subsp. alpinum (Griseb. & Schenk) Arcang.Flora Helvetica 2001882
=Sempervivum tectorum L. s.str.Flora Helvetica 2001881
=Sempervivum tectorum L. s.str.Flora Helvetica 2012257
=Sempervivum tectorum subsp. alpinum (Griseb. & Schenk) Arcang.Flora Helvetica 2012258
=Sempervivum tectorum L.Flora Helvetica 2018257–258
=Sempervivum tectorum L. s.str.Index synonymique 1996387200
=Sempervivum tectorum subsp. alpinum (Griseb. & Schenk) Arcang.Index synonymique 1996387300
=Sempervivum tectorum L. s.str.SISF/ISFS 2387200
=Sempervivum tectorum L. s.l.SISF/ISFS 2387100
=Sempervivum tectorum subsp. alpinum (Griseb. & Schenk) Arcang.SISF/ISFS 2387300
<Welten & Sutter 1982615
= The taxon corresponds to the accepted taxon (Checklist 2017)
< The taxon is included in the accepted taxon (Checklist 2017)
> The taxon includes (among others) also the accepted taxon (Checklist 2017)

Checklist 2017 comments

Wegfall des Ausdrucks s.l.: Die Art wurde bisher als «sensu lato» (s.l.) gekennzeichnet, um sie von der gleichlautenden (autonymen) «sensu stricto-Art» (s.str.) zu unterscheiden. Neu wird das Taxon nicht mehr in Unterarten aufgeteilt.


Native status

IUCN list of endangered species (© Walter & Gillett 1997) : No

Status on national Red List 2016

IUCN status:

 Least concern

Least concern

Additional information

IUCN criteria: --

Status on regional Red List 2019

Biogregraphic regions Status IUCN criteria
Jura (JU) LC
Mittelland (MP) NA
Alpennordflanke (NA) LC
Alpensüdflanke (SA) LC
Östliche Zentralalpen (EA) LC
Westliche Zentralalpen (WA) LC
  • Legend
    RERegionally Extinct
    CR(PE)Critically Endangered, Probably Extinct
    CRCritically Endangered
    NTNear Threatened
    LCLeast Concern

National Priority Species List Status

No national priority or international responsability

Protection status

International (Bern Convention) No
FRpartial protection (12.03.1973)
GLpartial protection (07.05.2006)
JUtotal protection (06.12.1978)
Switzerland --
OWtotal protection (01.04.2013)
TGtotal protection (01.01.2018)
VDtotal protection (02.03.2005)
  • Disclaimer
    InfoFlora compiles information on protected species as accurately as possible, taking it from the respective cantonal laws. In some cases, however, it was not possible to use the plant names as listed in the original text, but an interpretation of their taxonomy or nomenclature was necessary. The exact meaning of the categories „completely protected“ and „partially protected“ differs among the cantons.

    InfoFlora cannot guarantee that the information on the protection status is correct and complete. In case of doubts, we recommend to look up the texts of the respective cantonal law.