The village of Collobrières, in the Var department, is considered the capital of chestnuts. As such, it has numerous castanéiculteurs, farmers specializing in chestnut trees, able to explain the subtle difference between the terms châtaigne and marron used in French to designate what seems to be the same fruit. All chestnut trees produce both châtaignes and marrons in greater or lesser proportion and of more or less large size, depending on the variety. Châtaignes are partitioned fruits, divided by a thin skin called tan while marrons remain whole when peeled. The chestnut trees are hence considered to produce châtaignes when the proportion of partitioned fruits exceeds 12% and marrons otherwise.