{{short description|Genus of plants}} {{Automatic taxobox |image = Crassula capitella 2.jpg |image_caption = ''Crassula capitella'' |taxon = Crassula |authority = L.<ref name=POWO>{{cite POWO |title=''Crassula'' L. |id=30014394-2 |access-date=2024-12-01}}</ref> |diversity = c. 250 species |diversity_link = List of Crassula species |type_species = ''Crassula perfoliata'' |type_species_authority = L. |synonyms = {{Genus list | hidden=yes | Bulliarda | DC. | Combesia | A.Rich. | Crassularia | Hochst. ex Schweinf. | Creusa | P.V.Heath | Curtogyne | Haw. | Danielia | Lem. | Dasystemon | DC. | Dietrichia | Tratt. | Dinacria | Harv. | Globulea | Haw. | Gomara | Adans. | Grammanthes | DC. | Helophytum | Eckl. & Zeyh. | Kalorochea | H.J.Veitch | Kalosanthes | Haw. | Larochea | Pers. | Mesanchum | Dulac | Pagella | Schönland | Petrogeton | Eckl. & Zeyh. | × Purgobulea | P.V.Heath | Purgosea | Haw. | Rhopalota | N.E.Br. | Rochea | DC., nom. cons. | × Rocheassula | G.D.Rowley | Sarcolipes | Eckl. & Zeyh. | Septas | L. | Septimia | P.V.Heath | Sphaeritis | Eckl. & Zeyh. | Tetraphyle | Eckl. & Zeyh. | Thisantha | Eckl. & Zeyh. | Tillaea | L. | Tillaeastrum | Britton | Toelkenia | P.V.Heath | Turgosea | Haw. | Vauanthes | Haw. }} |synonyms_ref = <ref name=POWO/> }}
'''''Crassula''''' is a genus of succulent plants containing about 200 accepted species,<ref name=POWO/> including the popular jade plant (''Crassula ovata''). They are members of the stonecrop family (Crassulaceae) and are native to many parts of the globe, but cultivated varieties originate almost exclusively from species from the Eastern Cape of South Africa.<ref>{{Cite web |title=Crassula (genus) - Crassulaceae |url=https://succulent-plant.com/families/crassulaceae/crassula.html |access-date=2024-07-21 |website=The Succulent Plant Page}}</ref><ref>{{Cite journal |last1=Bruyns |first1=P. V. |last2=Hanáček |first2=P. |last3=Klak |first3=C. |date=2019-02-01 |title=Crassula, insights into an old, arid-adapted group of southern African leaf-succulents |url=https://www.sciencedirect.com/science/article/pii/S1055790318303567 |journal=Molecular Phylogenetics and Evolution |volume=131 |pages=35–47 |doi=10.1016/j.ympev.2018.10.045 |pmid=30391519 |bibcode=2019MolPE.131...35B |issn=1055-7903|url-access=subscription }}</ref>
Crassulas are usually propagated by stem or leaf cuttings. Most cultivated forms will tolerate some small degree of frost, but extremes of cold or heat will cause them to lose foliage and die.
== Taxonomy ==
''Crassula'' was first formally described by Carl Linnaeus in 1753 with 10 species.{{sfn|Linnaeus|1753}}
=== Etymology === The name crassula comes from the Latin adjective ''crassus'', meaning thick, referring to the thickening of the succulent leaves.
=== Selected species === {{Main|List of Crassula species}} *''Crassula alata'' *''Crassula alba'' *''Crassula alpestris'' (Sand-Coated Crassula)<ref>{{cite web |url=https://garden.org/plants/view/140448/Crassula-Crassula-alpestris/ |title=Crassula (Crassula alpestris) in the Crassulas Database |access-date=2019-09-11}}</ref> *''Crassula alstonii'' *''Crassula aquatica'' (common pigmyweed, water pygmyweed) *''Crassula arborescens'' (silver dollar plant, ''beestebul'') *''Crassula atropurpurea'' *''Crassula ausensis'' **''Crassula ausensis'' ssp. ''titanopsis'' *''Crassula barbata'' [[Image:Crassula barbata - Karoo South Africa.jpg|thumb|''Crassula barbata'']] *''Crassula barklyi'' (rattlesnake tail, ''wurmplakkie'') *''Crassula biplanata'' *''Crassula brevifolia'' *''Crassula capitella'' [[Image:Crassula capitella - CT 5.jpg|thumb|''Crassula capitella'' 'Campfire']] **''Crassula capitella'' ssp. ''thyrsiflora'' (''aanteel-poprosie'') 'Red Pagoda' [[Image:Crassula capitella subsp thyrsiflora dwarf.jpg|thumb|''Crassula capitella'' ssp. ''thyrsiflora'' 'Red Pagoda']] *''Crassula clavata'' *''Crassula closiana'' *''Crassula colligata'' *''Crassula colorata'' (dense stonecrop) *''Crassula columella'' (''silinderplakkie'') *''Crassula columnaris'' (''koesnaatjie'') *''Crassula connata'' (sand pygmyweed) *''Crassula corallina'' [[Image:Crassula lactea BotGardBln271207B.jpg|thumb|''Crassula lactea'']] *''Crassula cotyledonis'' *''Crassula cultrata'' (''plakkiebos'') *''Crassula deceptor'' *''Crassula decumbens'' (scilly pigmyweed) *''Crassula dejecta'' *''Crassula deltoidea'' (silver beads, ''gruisplakkie'') *''Crassula elegans'' (elegant crassula) *''Crassula exserta'' *''Crassula glomerata'' *''Crassula helmsii'' (swamp stonecrop) *''Crassula lactea'' (tailor's patch, Knysna crassula) *''Crassula marnieriana'' *''Crassula moschata'' (musky stonecrop, shore stonecrop) *''Crassula multicava'' (fairy crassula) *''Crassula muscosa'' (rattail crassula, watch chain, lizard's tail, zipper plant; syn. ''C. lycopodioides'') *''Crassula namaquensis'' **''C. namaquensis'' ssp. ''comptonii'' *''Crassula natans'' *''Crassula nudicaulis'' [[Image:Crassula nudicaulis var herrei.jpg|thumb|right|''Crassula nudicaulis'' var. ''herrei'']] **''C. nudicaulis'' var. ''herrei'' **''C. nudicaulis'' var. ''platyphylla'' *''Crassula ovata'' ('jade' plant, 'money plant); syn. ''C. argentea'', ''C. portulacea'' **''C. ovata'' var. ''cristata'' **''C. ovata'' var. ''monstruosa'' **''C. ovata undulata'' ('ripple jade', 'wavy jade') *''Crassula peduncularis'' (purple stonecrop) *''Crassula pellucida'' **''C. pellucida'' var. ''marginalis'' *''Crassula perfoliata'' ** ''C. perfoliata'' var. ''falcata'' (propeller plant) *''Crassula perforata'' (string of buttons, ''sosatieplakkie'') *''Crassula picturata'' *''Crassula pubescens'' (Jersey pigmyweed) **''Crassula pubescens'' ssp. ''radicans'' **''Crassula pubescens'' ssp. ''rattrayi'' *''Crassula rubricaulis'' *''Crassula rupestris'' (rosary plant, kebab bush, concertina plant, ''sosatiebos'', ''inrygertjie'') **''C. rupestris'' ssp. ''marnierana'' *''Crassula sarcocaulis'' (bonsai crassula) *''Crassula sarmentosa'' *''Crassula setulosa'' (South African pygmyweed) *''Crassula sieberiana'' (Austral stonecrop) *''Crassula subaphylla'' *''Crassula tecta''<!-- syn. C. deceptor --> *''Crassula tetragona'' *''Crassula tetramera'' *''Crassula thunbergiana'' *''Crassula tillaea'' (moss pygmyweed) *''Crassula umbella''
=== List of selected cultivars ===
*''Crassula'' 'Buddha's Temple' *''Crassula'' 'Coralita' *''Crassula'' 'Dorothy' *''Crassula'' 'Emerald' *''Crassula'' 'Fallwood' *''Crassula'' 'Hummel's Sunset' *''Crassula'' 'Ivory Pagoda' *''Crassula'' 'Justus Corderoy' *''Crassula'' 'Morgan's Beauty' *''Crassula'' 'Moonglow' *''Crassula'' 'Petite Bicolor,' sometimes sold as ''Sedum'' 'Little Missy' or 'Mini Kitty', a cultivar of ''Crassula pellucida'' var. ''marginalis''<ref>"World of Succulents","Succulentopedia", Crassula 'Petite Bicolor', 2017. Online at https://worldofsucculents.com/crassula-petite-bicolor/</ref> 'Calico Kitten' *''Crassula'' 'Springtime' *''Crassula'' 'Tom Thumb'
== Gallery == <gallery> File:Gardenology.org-IMG 0509 hunt07mar.jpg|''Crassula arborescens'' File:Crassula capensis var. promontorii (Crassulaceae) (37441743980).jpg|''Crassula capensis'' File:Crassula ciliata - CT 9.jpg|''Crassula ciliata'' File:Crassula columnaris P1020356.JPG|''Crassula columnaris'' File:Crassula cotyledonis (Crassula dubia) - San Luis Obispo Botanical Garden - DSC05962.JPG|''Crassula cotyledonis'' File:Crassula cultrata kz1.JPG|''Crassula cultrata'' File:Crassula tecta.jpg|''Crassula deceptor'' File:Gardenology.org-IMG 0312 hunt07mar.jpg|''Crassula deltoidea'' File:Crassula expansa (Crassulaceae) (36725108274).jpg|''Crassula expansa'' File:Crassula fascicularis.JPG|''Crassula fascicularis'' File:Crassula lanceolata subsp lanceolata - Cape Peninsula - 2.jpg|''Crassula lanceolata'' File:Crassula multicava subsp. multicava 2017-05-31 2146 05.jpg|''Crassula multicava'' File:Crassula hirta.jpg|''Crassula nudicaulis'' File:Crassula orbicularis kz02.jpg|''Crassula orbicularis'' File:A 40 year old jade plant (Crassula ovata).jpg|''Crassula ovata'' File:Crassula pellucida forms - CT 6.jpg|''Crassula pellucida'' File:Crassula perfoliata, Allan Gardens.jpg|''Crassula perfoliata'' File:Starr-110218-1569-Crassula perforata-flowering habit-Ulana St Makawao-Maui (24449889633).jpg|''Crassula perforata'' File:Crassula rubricaulis - South Africa.jpg|''Crassula rubricaulis'' File:Crassula.rupestris.7076.jpg|''Crassula rupestris'' File:Crassula streyi (17351859205).jpg|''Crassula streyi'' File:Crassula tecta 04.jpg|''Crassula tecta'' File:Crassula tetragona kz1.JPG|''Crassula tetragona'' File:Crassula dichotoma (4).JPG|''Crassula dichotoma'' </gallery>
==References== {{Reflist}}
== Bibliography == {{refbegin}} * {{Cite book |last=Linnaeus |first=Carl |url=https://www.biodiversitylibrary.org/item/13829#page/1/mode/1up |title=Species Plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas |publisher=Impensis Laurentii Salvii |year=1753 |volume=1 |location=Stockholm |pages=282–283 |chapter=Crassula |chapter-url=https://www.biodiversitylibrary.org/item/13829#page/294/mode/1up |authorlink=Carl Linnaeus |lang=la}}, ''see also'' Species Plantarum {{refend}}
==External links== {{Commons category|Crassula}} *{{Wikispecies-inline|Crassula (Crassulaceae)|Crassula}}
{{Taxonbar|from=Q158253}}
Category:Crassula Category:Crassulaceae genera