View source for Grahamia (plant)

{{short description|Genus of plants}}
{{Automatic taxobox
| image = Grahamia bracteata (8677478446).jpg
| image_caption = ''Grahamia bracteata''
| taxon = Grahamia (plant)
| authority = [[John Gillies (botanist)|Gillies]], 1833 ex Hook. & Arn.
| subdivision_ranks = Species<ref name = PlantList>{{cite web | url = http://www.theplantlist.org/browse/A/Portulacaceae/Grahamia/ | title = ''Grahamia '' | accessdate = 20 June 2017 | publisher = ThePlantList.org | work = The Plant List}}</ref>
| subdivision = *''[[Grahamia australiana]]'' <small>([[John McConnell Black|J.M.Black]]) G.D.Rowley</small>
*''[[Grahamia bracteata]]'' <small>Gillies ex Hook. & Arn.</small>
*''[[Grahamia coahuilensis]]'' <small>([[Sereno Watson|S.Watson]]) G.D.Rowley</small>
*''Grahamia frutescens'' <small>([[Asa Gray|A.Gray]]) G.D.Rowley</small> → ''[[Talinopsis frutescens]]'' <small>A.Gray</small>
*''[[Grahamia kurtzii]]'' <small>([[Nélida María Bacigalupo|Bacigalupo]]) G.D.Rowley</small>
*''[[Grahamia vulcanensis]]'' <small>(Añon) G.D.Rowley</small>
| synonyms = *''Talinopsis'' <small>A. Gray, 1852</small>
*''Talinaria'' <small>[[Townshend Stith Brandegee|Brandegee]], 1906</small>
*''Xenia'' <small>Gerbaulet, 1992</small>
| synonyms_ref = <ref name = Eggli>{{cite book | editor = Urs Eggli | year = 2002 | title = Illustrated Handbook of Succulent Plants: Dicotyledons | publisher = Springer Science & Business Media | isbn = 978-3540419662 | pages = 386–387}}</ref>
}}
'''''Grahamia''''' is a genus of [[succulent plants]] in the family [[Anacampserotaceae]] which contains six species which show a disjunct distribution, three species being found in northern  [[Argentina]], two in [[Mexico]] and one in [[Australia]].
==Distribution and taxonomy==
Three species ''[[Grahamia bracteata]]'', ''[[Grahamia kurtzii]]'' and ''[[Grahamia vulcanensis]]'' are found in northern Argentina, while ''[[Grahamia coahuilensis]]'' occurs in central Mexico and ''[[Grahamia frutescens]]'' is found in northern Mexico. ''[[Grahamia australiana]]'' is [[endemism|endemic]] to Australia. The genus ''Grahamia'' is divided into two subgenera, subgenus ''Grahamia'' contains ''G. bracteata'' and ''G, fructesecens'' which are low, scrambling small shrubs with stiff branches and cylindrical, rather smooth leaves; while ''Grahamia'' subgenus ''Talinaria'' are succulent, long-lived herbs with distinct succulent leaves on weak fleshy branches with the leaves aggregated near the branch tips.<ref name = Nyfeller>{{cite journal | author = Reto Nyfeller | year = 2007 | title = The Closest Relatives of Cacti: Insights from Phylogenetic Analyses of Chloroplats and Mitochondrial Sequences with Special Emphasis on Relationships in the Tribe Anacampseroteae | journal = American Journal of Botany | volume = 94 | issue =1 | pages = 89–101| pmid = 21642211 | doi = 10.3732/ajb.94.1.89 }}</ref> ''G. australiana'' was previously considered to be a member of the genus ''[[Anacampseros]]'' and the remaining species were placed in four monotypic genera, except for ''G. vulcanensis'' which was not considered. It is now thought that all six species are best considered in a single genus as proposed by G. D. Rowley.<ref name = Nyfeller/> Other authorities, however, placed ''G. vulcanensis'' in ''Anacampseros''.<ref name = Eggli/>
==Brief description==
The species of ''Grahamia'' vary from partially deciduous small shrubs with succulent leaves to perennial succulent herbs, but they all have a single tuberous tap root. The leaves are [[glabrousness (botany)|glabrous]], except for the axils, and may be flat or cylindrical in shape. The [[inflorescence]]s are grouped in 3-6 [[Scape (botany)|scapes]] or in loose terminal [[Inflorescence|cymes]].<ref name = Eggli/>
==Naming==
==References==
{{Reflist}}
{{Taxonbar|from=Q5593430}}
[[Category:Anacampserotaceae]]
[[Category:Caryophyllales genera]]