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,
Nut Tree ceased operations in 1996 due to financial issues brought about by a family feud that was taken to court. The main Nut Tree buildings were demolished in Fall 2003. The Coffee Tree restaurant across the I-80 freeway, another part of the original Nut Tree holdings, was demolished in late 2005. The old original Harbison house was donated to the Vacaville Museum in 1998 and is being restored in a new location 1000 feet from the original site. Nut Tree reopened in 2006 as a mixed-use development of Snell and Co. It contains Nut Tree Family Park (children's amusement park), Nut