Flora of the Hawaiian Islands
Gymnosperm Literature for Araucaria columnaris
Staples & Herbst, 2005; Silba, 1986 Gymnosperm database, accessed 2/20/2009. http://www.conifers.org/ar/index.html.
   Araucariaceae Bibliography
      Araucaria columnaris
General Information
DistributionSouthern New Caledonia. Widely cultivated in climates warm enough to support it. In the Hawaiian Islands, naturalized on O`ahu, Moloka`i, Lana`i, Maui.

Araucariaceae - Araucaria columnaris

Tree to 60 m. tall, crown narrowly conical, trunk clear then later with numerous short shoots, bark gray, papery, exfoliating in thin strips; branchlets cord-like, growing in one plane, 9-10 mm in diameter.
Juvenile leaves needle-like, imbricate, lanceolate, 4-7 mm long, 2-3 mm wide, apex incurved. Adult leaves scale-like imbricate, triangular, acuminate, obtuse, midrib faint, 5-7 mm long, 3-5 mm wide, apex incurved.
Seeds 3-3.5 cm long, nut ovate, wings broadly rounded, germination epigeal.
Pollen Cone
Male cones oblong-cylindrical, 5-10 cm long, 15-22 mm wide; scales triangular, finely toothed, pollen sacs 10; microsporophylls cuspidate.
Seed Cone
Female cones 10-15 cm long, 7-11 cm wide, with short bracts to 7 mm long.
The Cook pine (Araucaria columnaris) is often confused with the Norfolk pine, A. heterophylla which differs by its broader, non-columnar crown and adult leaves more than twice as long as wide.
David Lorence