''Jovibarba'' ("beard of Jupiter") is a small genus of three species of

succulent In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meani ...

flowering plants in the family Crassulaceae, endemic to mountainous regions in the southeastern quadrant of Europe. The genus is sometimes classified as a

subgenus In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between t ...

of '' Sempervivum'', to which it is closely related. ''Jovibarba'' have pale-greenish-yellow or yellow actinomorphic flowers with about six petals, while ''Sempervivum'' have generally pinkish flowers with around twice as many petals, which open more widely than jovibarba flowers. The common name hen and chicks is applied to some ''Jovibarba'' species (and also species in several other

genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...

). Most jovibarbas, like sempervivums, reproduce via

offset Offset or Off-Set may refer to: Arts, entertainment, and media * "Off-Set", a song by T.I. and Young Thug from the '' Furious 7: Original Motion Picture Soundtrack'' * ''Offset'' (EP), a 2018 EP by singer Kim Chung-ha * ''Offset'' (film), a 200 ...

s in addition to producing seeds via sexual reproduction. ''

Jovibarba heuffelii ''Jovibarba heuffelii'', common name hen-and-chickens, as a plant species native to the Balkans and to the Carpathians in Europe but reportedly naturalized in Wisconsin and probably in other parts of North America. It grows on rocky outcrops. '' ...

'' does not produce offsets on stolons. Instead the offspring of this plant are produced within the mother plant. To propagate it must be split with a knife. The other two jovibarba species are commonly called rollers. They produce offsets that are lightly attached and easily pop off and roll away from the mother plant. Offsets survive the main rosette, which is monocarpic.

Species

Only three species are accepted as distinct by the ''Flora Europaea'': *''

Jovibarba globifera ''Jovibarba globifera'', common name rolling hen-and-chicks, is a species of succulent flowering plant in the family Crassulaceae. Subspecies *''Jovibarba globifera'' subsp. ''allionii'' (Jord. & Fourr.) J. Parnell *''Jovibarba globifera'' su ...

'' (syn. ''J. sobolifera''; ''Sempervivum globiferum'') *''

'' (syn. ''J. velenovskyi''; ''Sempervivum heuffelii'') *''

Jovibarba hirta ''Jovibarba'' ("beard of Jupiter") is a small genus of three species of succulent flowering plants in the family Crassulaceae, endemic to mountainous regions in the southeastern quadrant of Europe. The genus is sometimes classified as a subgenu ...

'' (syn. ''Sempervivum hirtum'') ''Jovibarba globifera'' and its subspecies (subsp. ''hirtum'', subsp. ''allionii'', subsp. ''arenaria'') live in the eastern and southern Alps, the Carpathians and the western Balkans south to northern Albania. ''J. heuffelii'' occurs in the remainder of the Balkans and the eastern Carpathians, southeast of ''J. globifera''. ''J. hirta'' occurs further west, in the southwestern Alps.

References

External links

''Flora Europaea'' search resultsUSDA Jovibarba Page
Crassulaceae Flora of Europe Crassulaceae genera {{Crassulaceae-stub