Younger , outdated. Zhivuchka   ( Latin Sempervívum ), - genus of flowering plants of the family Crassulaceae . The scientific name of the genus comes from semper (from the Latin. - "always") and vivus ("live").
Roofing molodilo ( Sempervivum tectorum )
|International Scientific Name|
Sempervivum L. , 1753
The name of the young may also be worn by another plant - sedum ( lat. Sédum ácre ) from the same Crasty family  .
Some species of this genus (as well as some species of other crass jugs) have the Russian names “Kamenny Roza” and “Rabbit Cabbage”.
Perennial fleshy grasses , pubescent with glandular hairs, less often almost naked, forming very thick multi-leaf rosettes of leaves 1–15 cm in diameter and numerous stolons bearing small rosettes of leaves.
Flowering stems are usually pubescent with fine glandular hairs, erect and unbranched. Monocarpics . Succulent leaves , alternate, entire, usually ovate or oblong, sharp or pointed, ciliate along the edge.
The flowers are regular, 8-20-dimensional, bisexual, with a double perianth , almost sessile, gathered in corymboid-paniculate inflorescences , separate inflorescences of which are monochasions . Sepals are fleshy, fused at base, entire, usually covered with short, simple or glandular hairs, rarely bare. The petals are lanceolate , always longer than the sepals, usually starry prostrate, on the edges and the outside are white, yellow, yellow-green, red, pink or purple. Stamens twice as large as the petals, from 16 to 40; the opposite to the petals grow at the base to them, and the next to the petals are free. Filaments usually flattened, pubescent or, less commonly, bare. Anthers oblong ovate. Nectar glands subpedic, small, plate-shaped, whole on top. Gynetsa is free from 8–20 uneven-borne, oblong-ovoid, usually glandular, sedentary carpels . Stilodii slightly shorter ovary , straight, naked. Stigmas are small, capitates.
Fruit of 8–20 oblong ovate or nearly lanceolate, pubescent with glandular hairs, multi-seeded leaflets .
Origin and distribution
The genus includes about 30-50 species . Distributed in Central , Southern , Eastern Europe , the Caucasus , in Small and Southeast Asia , mainly in mountainous areas.
In Central Russia , one species grows - the young ( Russian) ( Sempervivum ruthenicum ), in the Caucasus - the young Caucasian ( Sempervivum caucasicum ).
Very easily hybridizes both in nature and in culture . There are many varieties .
Representatives of the genus Sempervivum are easy to recognize, but it is quite difficult to distinguish between its species, since even representatives of the same species may look different under different growth conditions and at different times of the year. Many species of molodilas have been described without clear distinctive features among themselves. The problem of establishing species is complicated by the high frequency of occurrence of natural interspecific hybrids .
List of species according to The Plant List (2010)  :
- Sempervivum arachnoideum L. - Reindeer the cobwebby , or Rejuvenated the cobweb
- Sempervivum armenum Boiss. & Huet - Young Armenian
- Sempervivum calcareum Jord.
- Sempervivum carpathicum wettst. ex Prodán - Rejuvenated Carpathian
- Sempervivum caucasicum Rupr. ex boiss. - Young Caucasian
- Sempervivum ciliosum Craib - Rejuvenated ciliary
- Sempervivum dolomiticum Facchini
- Sempervivum fauconnettii Reut.
- Sempervivum × giuseppii Wale
- Sempervivum globiferum L. - Thrilled ball-bearing
- Sempervivum grandiflorum Haw.
- Sempervivum heuffelii Schott
- Sempervivum jakucsii Pénzes
- Sempervivum kindingeri adamovic
- Sempervivum kosaninii praeger
- Sempervivum leucanthum pancic
- Sempervivum macedonicum Praeger - Macedonian reassured
- Sempervivum marmoreum Griseb. - It was young marble
- Sempervivum minutum ( Kunze ex Willk. ) Nyman ex Pau
- Sempervivum montanum L. - A young mountain
- Sempervivum octopodes Turrill
- Sempervivum pittonii Schott , Nyman & Kotschy
- Sempervivum rhenanum ( Hegi & Schmid ) Law.
- Sempervivum ruthenicum Schnittsp. & CBLehm. - Young Russian
- Sempervivum tectorum L. - Reinforced roofing
- Sempervivum × thompsonianum Wale
- Sempervivum transcaucasicum Muirhead - It was molodilas Transcaucasian
- Sempervivum vicentei pau
- Sempervivum wulfenii Hoppe ex Mert. & WDJKoch
- Sempervivum zeleborii Schott
Some species - for example, young ballonose ( Sempervivum globiferum ) - are used as ornamental garden plants. In folk medicine it is used for scurry , fever , epilepsy and other diseases 
- About the conditionality of specifying the class of dicotyledons as a higher taxon for the group of plants described in this article, see the section “APG Systems” of the article “Dicotyledons” .
- Nikolaev, M. G., Pautova, I. A. A Brief Dictionary of Russian Plant Names / Ed. ed. Corr. RAS N. N. Tsvelev ; RAS; Nerd. Inst them. V.L. Komarov. - SPb. : Rostock , 2002. - p. 28. - ISBN 5-94668-012-9 . .
- Zhivuchka // Brockhaus and Efron Encyclopedic Dictionary : 86 t. (82 t. And 4 add.). - SPb. , 1890-1907.
- Rejuvenated // Brockhaus and Efron Encyclopedic Dictionary : 86 t. (82 t. And 4 add.). - SPb. , 1890-1907.
- Sempervivum (English) . The Plant List (2010). Version 1. Published on the Internet; http://www.theplantlist.org/ . Royal Botanic Gardens, Kew and Missouri Botanical Garden (2010). The appeal date is August 28, 2013. Archived September 15, 2013.
- Healing properties of Molodil Unsolved . OptimusBlack4 (June 14, 2013). The date of circulation is 22 2013. Archived on May 14, 2013.
- Byalt V.V., Gapon V.N., Vasilyeva I.M. Molodilo // Sifter, juvenile and other pulsations. - Moscow : Astrel Publishing LLC, AST Publishing LLC, Transitkniga LLC, 2004. - P. 109-114. - 270,  s. - (Flower kaleidoscope). - 7000 copies - ISBN 5-17-020601-1 . ISBN 5-271-09112-0 . ISBN 5-9578-0368-5 . UDC 635.9
- Molodilo - an article from the Great Soviet Encyclopedia .
- Zhizuchka // Encyclopedic Dictionary of Brockhaus and Efron : in 86 tons (82 tons and 4 extra). - SPb. , 1890-1907.
- Reindeer (English) : information on the site GRIN . (eng.) (checked November 7, 2011)
- Really (English) information on the website " Encyclopedia of Life " (EOL). (eng.) (checked November 7, 2011)