Araucaria columnaris, known as Cook pine or Cook's pine, is a species of conifer in the family Araucariaceae. It is endemic to New Caledonia, which as a location harbours a vast amount of remnant, warm climate Antarctic Flora. This species is unique among all the trees in the world in that it leans towards the equator.

Araucaria columnaris is a distinctive narrowly conical tree growing up to 60 m (200 ft) tall in its native habit. The trees have a slender, spire-like crown. The shape of young trees strongly resembles A. heterophylla. The bark of the Cook pine peels off in thin paper-like sheets or strips and is rough, grey, and resinous.

Araucaria columnaris, often referred to as the 'Cook Pine', is an elegant coniferous tree renowned for its slender, columnar growth habit. Originating from New Caledonia, this tree showcases a symmetrical arrangement of horizontal branches adorned with dense, needle-like leaves, giving it a distinct tropical appearance.

Araucaria columnaris (New Caledonian Pine) is a narrow columnar evergreen conifer with short, mostly horizontal branches that grow in whorls around the slender, upright to slightly leaning trunk. The branches are lined with cord-like, horizontal branchlets clad with small, green, incurved, spirally arranged, overlapping leaves.