{{Short description|Genus of plants}} {{Speciesbox |image = |image_caption = |display_parents = 3 |genus = Hallianthus |parent_authority = H.E.K.Hartmann |species = planus |authority = (L.Bolus) H.E.K.Hartmann |synonyms = {{species list |Leipoldtia compressa |L.Bolus |Leipoldtia plana |(L.Bolus) L.Bolus }} }}
thumb | right | Hallianthus planus '''''Hallianthus''''' is a monotypic genus of flowering plants belonging to the family Aizoaceae.<ref>{{cite web |title=''Hallianthus'' H.E.K.Hartmann {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:893290-1 |website=Plants of the World Online |access-date=15 May 2021 |language=en}}</ref> It only contains one species, '''''Hallianthus planus'''''<ref name="POWO">{{cite web |title=''Hallianthus planus'' (L.Bolus) H.E.K.Hartmann {{!}} Plants of the World Online {{!}} Kew Science |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:912657-1 |website=Plants of the World Online |access-date=20 September 2021 |language=en}}</ref>
It is native to the Cape Provinces of the South African Republic.<ref name="POWO" />
The genus name of ''Hallianthus'' is in honour of Harry Hall (1906–1986), a British-born horticulturist, botanist and succulent plant authority.<ref>{{cite book | last=Quattrocchi | first=Umberto | title=CRC World Dictionary of Plant Names, Volume II, D–L | publisher=CRC Press | location=Boca Raton, Florida | year=2000 | isbn=978-0-8493-2676-9}}</ref> The Latin specific epithet of ''planus'' refers to flat.<ref>{{cite book | last=Lewis | first=Charlton | title=An Elementary Latin Dictionary | publisher=Oxford University Press | location=Oxford | year=1891 | isbn=9780199102051 }}</ref> ''Hallianthus planus'' was first described and published in Bot. Jahrb. Syst. Vol.104 on page 167 in 1983.<ref name="POWO" />
==References== {{Reflist}}
{{Taxonbar|from1=Q3009128|from2=Q15591102}}
Category:Aizoaceae Category:Aizoaceae genera Category:Plants described in 1983 Category:Endemic flora of the Cape Provinces Category:Taxa named by Heidrun Hartmann Category:Monotypic Caryophyllales genera