Araucaria heterophylla , also called the Norfolk Island Pine , is a conifer tree . Araucaria heterophylla ( synonym A. excelsa ) is a distinctive conifer , a member of the ancient and now disjointly distributed family Araucariaceae . As its vernacular name Norfolk Island Pine implies , the tree is endemic to Norfolk Island , a small island in the Pacific Ocean between Australia , New Zealand and New Caledonia .