any araucaria tree; esp., a tall tree (Araucaria araucana) with stiff pointed leaves, edible nuts, and hard wood, widely grown as an ornamental
See monkey puzzle in American Heritage Dictionary 4
(mŭngˈkē-pŭzˌəl)
noun
A coniferous evergreen tree (Araucaria araucana) native to Chile, having intricately ramifying branches covered with overlapping, leathery, lanceolate, prickle-tipped leaves.