Nut (fruit) usage of the term is less restrictive, and many nuts (in the culinary sense), such as almonds, pecans, pistachios, walnuts, and Brazil nuts, are not nuts in a botanical sense. Common usage of the term often refers to any hard-walled, edible kernel as a nut. A nut in botany is a simple dry fruit in which the ovary wall becomes increasingly hard as it matures, and where the seed remains unattached or free within the ovary wall. Most nuts come from the pistils with "inferior" ovaries (see flower) and all are "indehiscent" (not opening at maturity). True nuts are produced,
Pine nut dishes such as "kibbeh", "sambusak", desserts such as baklava, and many others. Throughout Europe and Middle East the pine nuts used are traditionally from "Pinus pinea" (stone pine). They are easily distinguished from the Asian pine nuts by their more slender shape and more homogeneous flesh. Because of the lower price, Asian pine nuts are also often used, especially in cheaper preparations. Pine nuts contain thiamine (vitamin B) and protein. Pine nut coffee, known as "piñón" (Spanish for pine nut), is a specialty found in the southwest United States, especially New Mexico, and is typically a dark roast coffee having