Idiospermum

Species of tree

Idiospermum is a monotypic genus in the family Calycanthaceae. The sole included species is Idiospermum australiense − commonly known as idiotfruit, ribbonwood, or dinosaur tree − which is found only in two small areas of the tropical rainforests of northeastern Queensland, Australia. It is a relic of the ancient forests of Gondwana, surviving in very localised refugia for 120 million years, and displaying features that are almost identical to fossil records from that time. As such it provides an important insight into the very early evolution of flowering plants.

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