ˌkastəˈnäpsə̇s noun
Usage: capitalized
Etymology: New Latin, from Castanea + -opsis
: a small genus of trees (family Fagaceae) that contains one or two species in the Pacific coastal United States and a number in Asia and is closely related to Castanea but whose members are distinguished by having numerous bud scales on each bud, persistent leaves, a 3-celled ovary, and a fruit consisting of a nut that ripens at the end of the second season — see chinquapin