{{Short description|Genus of legumes}} {{Automatic taxobox |image = Apios americana (3837866496).jpg |image_caption = ''Apios americana'' |taxon = Apios |authority = Fabr. (1759), nom. cons. |subdivision_ranks = Species |subdivision = *''Apios americana'' {{small|Medik.}} *''Apios carnea'' <small>(Wall.) Benth. ''ex'' Baker</small> *''Apios chendezhaoana'' {{small|(Y.K.Yang, L.H.Liu & J.K.Wu) B.Pan bis, X.L.Yu & F.Zhang}} *''Apios delavayi'' <small>Franch.</small> *''Apios fortunei'' <small>Maxim.</small> *''Apios marcantha'' <small>Oliv.</small> *''Apios priceana'' <small>B.L.Rob.</small> |subdivision_ref = <ref name = powo>[https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:331356-2 ''Apios'' Fabr.] ''Plants of the World Online''. Retrieved 11 August 2023.</ref> |synonyms = *''Bradlea'' {{small|Adans. (1763), nom. superfl.}} *''Cyrtotropis'' <small>Wall. (1830)</small> *''Gonancylis'' {{small|Raf. (1824), nom. nud.}} *''Sinolegumenea'' {{small|Y.K.Yang, L.H.Liu & J.K.Wu (2004)}} |synonyms_ref = <ref name = powo/> }}

'''''Apios''''' is a genus of flowering plants in the family Fabaceae. It belongs to the subfamily Faboideae. It contains seven species of perennial climbing herbs or scandent shrubs. Several members of this genus are known to have edible, tuberous roots.<ref name=Seabrook />

''Apios'' species are native to eastern North America, from eastern Canada through the eastern and Central United States, and to eastern and southeastern Asia, from the Himalayas through Indochina, China, Korea, and Japan, from approximately 50° to 20° north latitude.<ref name = powo/><ref name=Seabrook>{{cite thesis|last=Seabrook|first=Janet E.A.|title=A Biosystematic Study of the Genus ''Apios'' Fabricius (Leguminosae) with Special Reference to ''Apios americana'' Medikus|degree=M.Sc. |publisher=University of New Brunswick, Fredericton, NB|year=1973}}</ref>

The name "''Apios''" comes from the Greek word for "pear" and may refer the pear shape of some tubers.<ref name=Seabrook />

==Species== Seven species are accepted:<ref name = powo/> *''Apios americana'' {{small|Medik.}} – eastern Canada and eastern and central United States *''Apios carnea'' <small>(Wall.) Benth. ''ex'' Baker</small> – Himalayas, Indochina, and China *''Apios chendezhaoana'' {{small|(Y.K.Yang, L.H.Liu & J.K.Wu) B.Pan bis, X.L.Yu & F.Zhang}} – southeastern China *''Apios delavayi'' <small>Franch.</small> – south-central China **''Apios delavayi'' var. ''delavayi'' **''Apios delavayi'' var. ''gracillima'' {{small|(Dunn) B.Pan bis}} *''Apios fortunei'' <small>Maxim.</small> – China, Korea, and Japan *''Apios marcantha'' <small>Oliv.</small> – eastern Tibet and south-central China *''Apios priceana'' <small>B.L.Rob.</small> – east-central United States

==References== {{Reflist}} *{{Wikispecies-inline}} *{{Commons category-inline|Apios}}

{{Taxonbar|from=Q2537603}}

Category:Phaseoleae Category:Fabaceae genera

{{Phaseoleae-stub}}