Araucaria cunninghamii Araucariaceae
Hoop Pine, Moreton Bay Pine a-row-KAH-ree-a kun-ing-HAM-i-e
- Conifer, evergreen tree, to 150-200 ft (~45-60 m) high, very slow growing, branches in whorls of 4-7,
upper ones ascending. Bark rough, peeling of in thin layers, under bark red or brown.
Leaves spirally arranged (occurring singly at a node and arranged spirally up the branchlet), lanceolate or
triangular, about 1 cm long, stiff, margin entire, sharp-pointed (very prickly); shorter on fertile branches
(much less prickly) and incurved. Flowers unisexual; male flowers in "cones" 2-5 cm long; seed (
female) cones ovate, erect, symmetrical, about 10 cm long and 7 cm wide; trees very old, as much as 200 years, before they produce cones.
- Hardy to USDA Zone (9)10 (subtropical and tropical) Native to the tropical and
subtropicalrainforests of northwestern Australia (New South Wales and Queensland) and New Guinea.
Two varieties are recognized:
- Araucaria cunninghamii var. cunninghamii - Australian form.
- Araucaria cunninghamii var. papuana - found in the mountains of Papua New Guinea; branches less ascending and cones larger than above.
- Hoop Pine: rough-barked trunk with circular "hoop" markings which give rise to the common name.
- cunninghamii: in honor of Alan Cunningham, 1791 - 1839, botanist and explorer.
- Specimen shown here growing at the University of California, Santa Cruz, Arboretum, USDA Hardiness Zone 9.