Arachis is a genus of about 70 species of annual and perennial flowering plants in the pea family (Fabaceae), native to South America, and was recently assigned to the informal monophyletic Pterocarpus clade of the Dalbergieae.[1][2] At least one species, the peanut (Arachis hypogaea), is a major food crop species of global importance; some of the other species are cultivated for food to a small extent in South America. Other species such as A. pintoi are cultivated worldwide as forage and soil conditioner plants, with the leaves providing high-protein feed for grazing livestock and a nitrogen source in agroforestry and permaculture systems.

Peanut 9417.jpg
Arachis hypogaea leaves and freshly dug pods
Scientific classification


See text


Arachis species, including the peanut, are used as food plants by some Lepidoptera species, including the flame shoulder, nutmeg, and turnip moth.[3]


Arachis comprises the following sections and species:[4][5]

Section ArachisEdit

Section CaulorrhizaeEdit

Section ErectoidesEdit

Section ExtranervosaeEdit

Section HeteranthaeEdit

Section ProcumbentesEdit

Section RhizomatosaeEdit

Series ProrhizomatosaeEdit

Series RhizomatosaeEdit

Arachis glabrata

Section TrierectoidesEdit

Section TriseminataeEdit


  • Arachis × batizogaea Krapov. & A. Fernández


  1. ^ a b Lavin M, Pennington RT, Klitgaard BB, Sprent JI, de Lima HC, Gasson PE (2001). "The dalbergioid legumes (Fabaceae): delimitation of a pantropical monophyletic clade". American Journal of Botany. 88 (3): 503–33. doi:10.2307/2657116. JSTOR 2657116. PMID 11250829.
  2. ^ a b Cardoso D, Pennington RT, de Queiroz LP, Boatwright JS, Van Wyk BE, Wojciechowskie MF, Lavin M (2013). "Reconstructing the deep-branching relationships of the papilionoid legumes". South African Journal of Botany. 89: 58–75. doi:10.1016/j.sajb.2013.05.001.
  3. ^ "HOSTS - a Database of the World's Lepidopteran Hostplants". The Natural History Museum, London. Retrieved 2020-06-14.
  4. ^ "ILDIS LegumeWeb entry for Arachis". International Legume Database & Information Service. Cardiff School of Computer Science & Informatics. Retrieved 5 February 2014.
  5. ^ USDA, ARS, National Genetic Resources Program. "GRIN species records of Arachis". Germplasm Resources Information Network—(GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 5 February 2014.CS1 maint: uses authors parameter (link)

External linksEdit