In the forests where they occur, they are usually dominant trees, often the largest species in the forest; the largest is Araucaria hunsteinii, reported to 89 m tall in New Guinea, with several other species reaching 50–65 m tall.
Di hutan di mana Araucariaceae tumbuh, mereka biasanya pohon dominan, seringkali spesies terbesar di hutan itu; yang terbesar adalah Araucaria hunsteinii, dilaporkan setinggi 89 m di pulau Irian, beberapa spesies lain mencapai tinggi 50-65 m.