Peanut

High Quality Content by WIKIPEDIA articles! The peanut, or groundnut (Arachis hypogaea), is a species in the legume or bean family (Fabaceae), so it is not a nut. The peanut was probably first cultivated in the valleys of Peru. It is an annual herbaceous plant growing 30 to 50 cm (1.0 to 1.6 ft) tall. The leaves are opposite, pinnate with four leaflets (two opposite pairs; no terminal leaflet), each leaflet 1 to 7 cm (⅜ to 23/4 in) long and 1 to 3 cm (⅜ to 1 inch) broad.