A cypress pine, Callitris rhomboidea (family Cupressaceae), native to southern and eastern Australia (especially Tasmania) and naturalized in New Zealand and elsewhere.
Origin
Mid 19th century. From Oyster Bay, the name of a bay on the east coast of Tasmania + pine.
Definition of Oyster Bay pine in US English:
Oyster Bay pine
nounˌɔɪstə ˌbeɪ ˈpʌɪn
A cypress pine, Callitris rhomboidea (family Cupressaceae), native to southern and eastern Australia (especially Tasmania) and naturalized in New Zealand and elsewhere.
Origin
Mid 19th century. From Oyster Bay, the name of a bay on the east coast of Tasmania + pine.