''Apios'' is a genus of
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...
s in the family
Fabaceae
Fabaceae () or Leguminosae,[International Code of Nomen ...](_blank)
. It belongs to the subfamily
Faboideae
The Faboideae are a subfamily of the flowering plant family Fabaceae or Leguminosae. An acceptable alternative name for the subfamily is Papilionoideae, or Papilionaceae when this group of plants is treated as a family.
This subfamily is widely ...
. It contains seven species of perennial climbing herbs or scandent shrubs. Several members of this genus are known to have edible, tuberous roots.
''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.
Species
Seven species are accepted:[
*'']Apios americana
''Apios americana'', sometimes called the American groundnut, potato bean, hopniss, Indian potato, hodoimo, America-hodoimo, cinnamon vine, or groundnut (not to be confused with other plants in the subfamily Faboideae sometimes known by that na ...
'' – eastern Canada and eastern and central United States
*'' Apios carnea'' (Wall.) Benth. ''ex'' Baker – Himalayas, Indochina, and China
*'' Apios chendezhaoana'' – southeastern China
*'' Apios delavayi'' Franch. – south-central China
**''Apios delavayi'' var. ''delavayi''
**''Apios delavayi'' var. ''gracillima''
*'' Apios fortunei'' Maxim. – China, Korea, and Japan
*'' Apios marcantha'' Oliv. – eastern Tibet and south-central China
*'' Apios priceana'' B.L.Rob. – east-central United States
References
*
*
Phaseoleae
Fabaceae genera
{{Phaseoleae-stub