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*Arachis Linnaeus. Peanut.

Key to Arachis

A genus of about 70 species, annual and perennial herbs, native of South America (especially Brazil).

ID notes:This remarkable genus bears normal aerial flowers, but following pollination the pedicels elongate and arch downward, the legume soon buried and developing underground (geocarpic).

Ref: Isely (1998); Rudd & Raveill (2023a) In Flora of North America Editorial Committee (2023a). Show full citations.

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