The Pecan (Carya illinoinensis or illinoensis)'s a species of hickory, native to south-central North America, in Mexico from Coahuila south to Jalisco and Veracruz, in the United States from southern Iowa, Illinois and Indiana east to western Kentucky, North Carolina, South Carolina and western Tennessee, south through Georgia, Alabama, Mississippi, Louisiana, Texas, Oklahoma and Arkansas "Pecan"'s from an Algonquian word, meaning a nut requiring a stone to crack. Growth The pecan tree's a larg… (More on Pecan)