Amphicarpaea bracteata

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Amphicarpaea bracteata inflorescence.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Genus: Amphicarpaea
Species: A. bracteata
Binomial name
Amphicarpaea bracteata
(L.) Fernald

Amphicarpaea bracteata (hog-peanut or ground bean) is an annual to perennial vine in the legume family, native to woodland, thickets, and moist slopes in eastern North America.[1]


Leaves have three leaflets and are held alternately on twining stems.

Flowers are pink to white and bloom from late summer to autumn. The flowers are either open for cross-pollination or closed and self-pollinating. The closed flowers may be above or below ground.[2]

Seeds from open flowers are held in a flat pod, pointed at both ends, that dries when mature and twists to release the seeds. Seeds from closed flowers are held in round pods with a single seed each. The roots and seeds are edible.[3] The seeds from underground flowers give it the name peanut.


  1. ^ Amphicarpaea bracteata (L.) Fernald, USDA PLANTS
  2. ^ "Consequences of a mixed reproductive system in the hog peanut, Amphicarpaea bracteata, (Fabaceae)", Oecologia 75 (2), March 1988: 285–290, doi:10.1007/BF00378611, ISSN 1432-1939 
  3. ^ Amphicarpaea bracteata - (L.)Rickett.&Stafleu., Plants For A Future

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