Agathis robusta (syn. A. palmerstonii), the Queensland kauri (pine) or smooth-barked kauri,[1] is a coniferous tree in the family Araucariaceae. (Although sometimes called a pine, it is not a true pine, and has leaves, not needles.) It has a disjunct distribution, occurring in Papua New Guinea and Queensland, Australia.[1] Populations in Papua New Guinea may be treated as the distinct species Agathis spathulata.[2]

Agathis robusta
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
(unranked):	Gymnosperms
Division:	Pinophyta
Class:	Pinopsida
Order:	Pinales
Family:	Araucariaceae
Genus:	Agathis
Species:	A. robusta
Binomial name
Agathis robusta (C.Moore ex F.Muell.) Bailey

Distribution and habitat

Agathis robusta occurs in two locations, a southern population on Fraser Island and around Maryborough, and a northern population on the Atherton Tableland west of Cairns; the northern population was formerly distinguished as Agathis palmerstonii, but does not differ from the southern population and is no longer considered distinct.[3]

It is a large evergreen tree growing straight and tall to a height of 30–50 m, with smooth, scaly bark. The leaves are 5–12 cm long and 2–5 cm broad, tough and leathery in texture, with no midrib; they are arranged in opposite pairs (rarely whorls of three) on the stem. The seed cones are globose, 8–13 cm diameter, and mature in 18–20 months after pollination; they disintegrate at maturity to release the seeds. The male (pollen) cones are cylindrical, 5–10 cm long and 1-1.5 cm thick.

Uses

The Queensland kauri was heavily logged in the past, and spectacular trees of prodigious size are much rarer than in pre-European times; despite this, the species as a whole is not endangered.

Gallery

• 
  Foliage
• 
  Bark
• 
  Harvested in the Eudlo district, Queensland, in 1905
• 
  Located in the Rose Garden at the Huntington Library and Gardens in San Marino, California
• 
  History and description of Agathis robusta tree at the Huntington Library and Gardens

References

External links

Wikimedia Commons has media related to Agathis robusta.

• Agathis robusta. The Gymnosperm Database.

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