What is "araucaria araucana"

Monkey's puzzle \Mon"key's puz"zle\ (Bot.) A lofty coniferous Chilian tree ( Araucaria araucana, formerly Araucaria imbricata), the branches of which are so crowded and intertwisted ``as to puzzle a monkey to climb.'' It is also called monkey puzzle and monkey puzzle tree. The edible nuts are over an inch long, and are called pi[~n]on by the Chilians.

Araucaria araucana (commonly called the monkey puzzle tree, monkey tail tree, Chilean pine, or pehuén) is an evergreen tree growing to 1-1.5 m (3–5 ft) in diameter and 30–40 m (100–130 ft) in height. It is native to central and southern Chile and western Argentina. Araucaria araucana is the hardiest species in the conifer genus Araucaria. Because of the longevity of this species, it is described as a living fossil. It is also the national tree of Chile. Its conservation status was changed to Endangered by the IUCN in 2013 due to the dwindling population.