Given by our neighbour.
Our trees have many years of growing yet.
Weight in 1.9kg. Relatively small nut.
An extract from tasteaustralia.biz
The Bunya Nut is native to south-eastern Queensland especially the Bunya Mountains National Park. The bunya nut tree is a huge tree which bears a crop only after the tree itself is around 100 years old, and then it crops once every 2 or 3 years only. The crop itself consists of large cones up to the size of a very heavy soccer ball – 300 mm in length and 10 kg in weight. The cones contain the edible nuts (seeds) which are encased in a shell. The nut resembles a chestnut and is equally tasty, maturing in summer.
More info on bunya nut tree