Sempervivum L.

Houseleek (en), Joubarde (fr)

Genus

Angiosperms > Saxifragales > Crassulaceae

Characteristics

Herbs, perennial, monocarpic, not viviparous, 1-6 dm, pubescent or glabrous. Stems erect, (compressed), not branched, succulent. Leaves persistent, forming basal rosette, alternate, sessile, not connate basally; blade oblanceolate to obovate, laminar to semiterete, 1.5-4(-6) cm, succulent, base not spurred, margins ciliate; veins not conspicuous. Inflorescences terminal cymes. Pedicels absent or to 5 mm. Flowers erect, 8-16-merous; sepals ± connate basally, all alike; petals spreading, distinct, pink to purple; calyx and corolla not circumscissile in fruit; nectaries quadrate; stamens 2+ times as many as sepals; filaments free; pistils erect, connivent; ovary base truncate; styles nearly as long as ovary. Fruits erect. Seeds (brown), ellipsoid, ribbed.
More
Fls 6–40-merous; pet distinct or united only at base; stamens twice as many as the pet, the filaments usually pubescent at least at base; carpels distinct or nearly so, the ovaries pubescent, the styles outcurved; fr follicular; seeds numerous; succulent perennials with dense, monocarpic rosettes of broad, flat, alternate, entire, ciliate, sessile lvs, acaulescent in the vegetative phase, and reproducing vegetatively by axillary stolons or seldom by division of the rosettes. 25, Eurasia.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 1.0
Mature height (meter) 0.1 - 0.6
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-8
Soil humidity 1-6
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Sempervivum unspecified picture
Sempervivum unspecified picture

Distribution

Sempervivum world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:12245-1
WFO ID wfo-4000035046
COL ID 7FHX
BDTFX ID 87200
INPN ID 197584
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Sempervivum Jovibarba x Jovivum

Lower taxons

Sempervivum x christii Sempervivum altum Sempervivum ingwersenii Sempervivum alatum Sempervivum macedonicum Sempervivum annae Sempervivum comollii Sempervivum balcanicum Sempervivum artvinense Sempervivum atlanticum Sempervivum x barbulatum Sempervivum erythraeum Sempervivum x feigeanum Sempervivum funckii Sempervivum dolomiticum Sempervivum heuffelii Sempervivum minutum Sempervivum pittonii Sempervivum brevipilum Sempervivum kosaninii Sempervivum ispartae Sempervivum leucanthum Sempervivum ciliosum Sempervivum atropatanum Sempervivum ermanicum Sempervivum gillianiae Sempervivum x giuseppii Sempervivum davisii Sempervivum staintonii Sempervivum stenopetalum Sempervivum pumilum Sempervivum x praegeri Sempervivum pisidicum Sempervivum marmoreum Sempervivum dzhavachischvilii Sempervivum ruthenicum Sempervivum borissovae Sempervivum caucasicum Sempervivum glabrifolium Sempervivum transcaucasicum Sempervivum giuseppii Sempervivum armenum Sempervivum iranicum Sempervivum barbulatum Sempervivum x fimbriatum Sempervivum x vaccarii Sempervivum soculense Sempervivum cernochii Sempervivum carpathicum Sempervivum rupicola Sempervivum morelianum Sempervivum ossetiense Sempervivum minus Sempervivum acuminatum Sempervivum x luisae Sempervivum ekimii Sempervivum herfriedianum Sempervivum sosnowskyi Sempervivum thompsonianum Sempervivum vicentei Sempervivum calcareum Sempervivum grandiflorum Sempervivum globiferum Sempervivum wulfenii Sempervivum montanum Sempervivum tectorum Sempervivum arachnoideum