Apios americana

Apios americana
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Fabales
Family:	Fabaceae
Genus:	Apios
Species:	A. americana
Binomial name
Apios americana Medikus
Synonyms
A. tuberosa Moench

Apios americana, sometimes called the potato bean, hopniss, Indian potato or groundnut (but not to be confused with other plants sometimes known by the name groundnut) is a perennial vine native to eastern North America, and bears edible beans and large edible tubers. It grows to 3–4 m long, with pinnate leaves 8–15 cm long with 5–7 leaflets. The flowers are red-brown to purple, produced in dense racemes. 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-European North America, and is now being developed for domestication.

External links

• Domestication of Apios americana
• Plants for a future database
• Apios americana at the USDA Plants database
• Hopniss: North America's best wild tuber?
• Orion magazine article