Rhaponticum Integrifolium

''Rhaponticum'' is a genus of flowering plants in the tribe Cardueae within the family Asteraceae. , it is accepted by Plants of the World Online, but rejected by the Global Compositae Database in favour of ''Leuzea''.

Taxonomy

The taxonomic history of the genus name ''Rhaponticum'' is complicated. It has been published at least four times according to the International Plant Names Index. The earliest was by Albrecht von Haller in 1742, which is regarded as an Validly published name, invalid name (''nom. inval.''). The next publication was by Sébastien Vaillant in 1754, also an invalid name. The next was by Christian Gottlieb Ludwig in 1757. This has become a conserved name (nom. cons.), with the conserved Type (biology), type species ''Centaurea rhapontica'' (syn. ''Leuzea rhapontica'' subsp. ''rhapontica''). A subsequent publication by Michel Adanson in 1763 is Nomen illegitimum, illegitimate.

Combining the genera ''Rhaponticum'' and ''Leuzea'' under the latter name was first suggested by Josef Holub in 1973. A 2006 Phylogenetics, phylogenetic study confirmed that as then Circumscription (taxonomy), circumscribed the genus ''Leuzea'' was embedded within ''Rhaponticum''. , the Global Composite Database considers all four ''Rhaponticum'' names as synonyms of the genus ''Leuzea''.

Species

The following species are recognised in the genus ''Rhaponticum'':

*''Rhaponticum acaule''
*''Rhaponticum altaicum''
*''Rhaponticum annae-bentiae''
*''Rhaponticum aulieatense''
*''Rhaponticum australe''
*''Rhaponticum berardioides''
*''Rhaponticum canariense''
*''Rhaponticum carthamoides'' – maral root, rhaponticum
*''Rhaponticum centauroides''
*''Rhaponticum chinense''
*''Rhaponticum coniferum''
*''Rhaponticum cossonianum''
*''Rhaponticum exaltatum''
*''Rhaponticum heleniifolium''
*''Rhaponticum insigne''
*''Rhaponticum integrifolium''
*''Rhaponticum karatavicum''
*''Rhaponticum longifolium''
*''Rhaponticum lyratum''
*''Rhaponticum namanganicum''
*''Rhaponticum nanum''
*''Rhaponticum nitidum''
*''Rhaponticum pulchrum''
*''Rhaponticum pygmaeum''
*''Rhaponticum repens'' – Russian knapweed
*''Rhaponticum scariosum'' – giant scabiosa
*''Rhaponticum uniflorum''

References

{{Authority control

Asteraceae genera
Cardueae