Peanut :: essays research papers

This hold is about peaaddict, the plant. There is a separate article about Pea pull together, the queer strip by Charles M. Schulz. Peanut Peanut leaves and freshly dug pods scientific classification Kingdom Plantae Division Magnoliophyta Class class Dicotyledones Order Fabales Family Fabaceae Subfamily Faboideae Tribe Aeschynomeneae Genus genus genus Arachis Species A. hypogaea Binomial name Arachis hypogaeaL. The Peanut (Arachis hypogaea) is a species in the pea family Fabaceae native to sulphur the States. It is an annual herbaceous plant growing to 30-50 cm tall. The leaves are alternate, compound with four leaflets (two opposite pairs no terminal leaflet), each leaflet 1-7 cm long and 1-3 cm broad. The flowers are a typical peaflower in shape, 2-4 cm across, scandalmongering with reddish veining. After pollination, the fruit develops into a legume 3-7 cm long containing 2-3 (rarely 1 or 4) seeds, which forces its way underground to mature. Although a nut in the culinary s ense, in the botanical sense the fruit of the earthnut is a woody, indehiscent legume or pod.Peanuts are also cognize as Groundnuts (because they grow underground), Earthnuts, Goobers, Goober peas, Pindas, Pinders, Manila nuts and Monkey nuts (the last of these is often used to mean the absolute pod, not exactly the seeds).Contents showhide 1 Origins2 Cultivation3 Cultivars of Peanuts3.1 Spanish root3.2 Runner Group3.3 Virginia Group3.4 Valencia Group3.5 Tennessee Red and Tennessee White Groups4 Uses5 Allergies6 U.S. Department of Agriculture Program for Peanuts7 shift8 See also9 External linkseditOrigins archaeologic evidence demonstrates that the peanut was domesticated in prehistoric times in South America, where wild ancestors are still found. The plant was later circulate worldwide by European traders. Cultivation in North America was popularized by African American, who brought the Kikongo word goober.editCultivationPeanuts, showing legumes, one dismantle open revealin g two seeds with their brown seed coatsThe flower of the Arachis hypogaea is borne above ground and after it withers, the stalk elongates, bends down, and forces the ovary underground. When the seed is mature, the privileged lining of the pods (called the seed coat) changes color from white to a reddish brown. The entire plant, including most of the roots, is removed from the soil during harvesting.The pods begin in the orange veined, yellow petaled, pealike flowers, which are borne in axillary clusters above ground. Following self-pollination (peanuts are dispatch inbreeders), the flowers fade. The stalks at the bases of the ovaries, called pegs, elongate rapidly, and turn downward to bury the fruits several inches in the ground to complete their development.