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{{Taxobox
| color = lightgreen
| name = ''Apios americana''
| image = Apios_americana.jpg
| image_width = 240px
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Dicotyledon|Magnoliopsida]]
| ordo = [[Fabales]]
| familia = [[Fabaceae]]
| subfamilia = [[Faboideae]]
| genus = ''[[Apios]]''
| species = '''''A. americana'''''
| binomial = ''Apios americana''
| binomial_authority = Medikus
| synonyms = ''A. tuberosa'' <small>Moench</small>
}}

'''''Apios americana''''', sometimes called the '''hog peanut''', '''potato bean''', or '''groundnut''' (but not to be confused with other plants sometimes known by the name [[groundnut]]) is a [[perennial plant|perennial]] [[vine]] native to eastern [[North America]], and bears edible [[bean]]s and large edible [[tuber]]s. It grows to 3-4 m long, with pinnate [[leaf|leaves]] 8-15 cm long with 5-7 leaflets. The [[flower]]s are red-brown to purple, produced in dense [[raceme]]s. The [[fruit]] is a [[legume]] (pod) 6-12 cm long.

The tubers are crunchy and nutritious, with a high content of [[starch]] and especially [[protein]]. The plant was one of the most important food plants of pre-[[Europe]]an North America, and is now being developed for [[domestication]].

== External links ==
* [http://www.hort.purdue.edu/newcrop/proceedings1990/V1-436.html Domestication of ''Apios americana'']
* [http://www.ibiblio.org/pfaf/cgi-bin/arr_html?Apios+americana&CAN=COMIND Plants for a future database]
* [http://plants.usda.gov/java/profile?symbol=APAM ''Apios americana'' at the USDA Plants database]

{{vegetable-stub}}

[[Category:Edible legumes]]
[[Category:Faboideae]]
[[Category:Flora of North America]]
[[Category:Root vegetables]]
[[Category:Underutilized crops]]
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