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Araucaria Columnaris tree

Botanical Name:  Araucaria columnaris (synonym: Aruacaria cookii)

Common Name: Cook Pine, New Caledonian Pine

Family: Coniferae (Araucariaceae)

Origin: It was discovered by Captain Cook on the Isle of Pines in New Caledonia (hence its two common names). Aside from New Caledonia it can also be found in Australia, New Zealand and New Guinea (i.e. the countries bordering the South Pacific)

Botanical description

Although  commonly called a “pine” tree, the Cook Pine is actually not a true “pine” (i.e. of the genus Pinus), however, it can be regarded as distant cousin of the pine tree

Form

The Cook Pine is a tall evergreen conifer that can grow up to 50 – 70m in height although locally heights of 25 – 30m are more common. The branches are set at right angles and occur in whorls around the trunk. The gradually decrease in size up the tree giving the Cook Pine its characteristic narrow conical shape.

Leaves

The leaves are small, short, slightly curved and needle-like. They are about 0.5 – 1.0cm in length and set densely and spirally on the twigs. During leaf shed whole leafy twigs are dropped rather than individual leaves

Flowers being a conifer, this tree does not actually produce flowers but instead produces cones, which are borne at the tip of the branches. Male and female cones are carried on separate plants. The male cones produce pollen, and are long and cylindrical, 5 – 10cm long by 1.5 – 2.0cm wide. The female cones are broader and large, 10 – 15cm long by 7 – 11cm wide.

Fruits

The fruits consists of a large broad woody oval-shaped cone, which is formed form the fertilized female cone, and it contains nut-like seeds that are about 3 cm long. However, both male and female cones are seldom formed under local conditions.

Trunk

Although it grows quite straight in its native homeland, the trunk sometimes has curious tendency to curve or lean quite dramatically when gown here in Singapore. The bark is greyish-brown in colour, and is quite rough and papery, is straw-coloured with a knottey pine character.

Points of interest

Habit

Cook Pine is fast growing and drought resistant, and exhibits some salt tolerance. In Singapore, it appears to be relatively free of pests and diseases. However, its small fine leaves are prone to being covered by soot, therefore it tends not to grow well near industrial areas or along roadsides where pollution levels are high.

Uses

With its attractive tall narrow columnar crown, the Cook pine is striking when planted next to tall building. It can also be planted in park or large garden either singly or in groups for use as an ornamental feature tree. Young Cook Pine trees can be decorated and used as Christmas trees in tropical countries such as ours where traditional Christmas trees do not grow. Cook Pines are suitable for reforestation and are commonly planted for timber. The wood is quite decorative with interesting knots and is use for making furniture and bowls.

Location

The Cook Pine can be found in parks and gardens, such as at the hilltop of Kent Ridge Park, and also Sembawang Park and Woodlands Town Garden

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