araucana Araucaria branch Chilean close up evergreen green leaves monkey pine puzzle spiky tree conifer leaf monkey-puzzle needle prickle Prickly spine spiny tree branch England english Great Britain monkey puzzle nature norfolk park parkland Somerleyton angles araucaria heterophylla Australian conifer background black branches common focus foliage living Christmas tree Norfolk pine ornamental outdoor plant prolific pyramid shape sepia shapes silhouette symmetrical textures color colour dense depth greenery horizontal whorls incurved indoor plant lanceolate narrow leaves overlapping potted plant