Dating of events from tree growth and wood structure
Wollemi pines have beautiful light green foliage composed of flattened, linear leaves.In the juvenile stage, leaves are twisted at the base to form a flattened, two-ranked arrangement similar to those of a coast redwood ().Adult leaves are four-ranked and spirally arranged around the stem.In their native habitat, the trees have multiple trunks; younger stems emerge from the base of the tree and gradually replace older trunks.
Fossil evidence indicates that ancient araucaria forests resembling present-day species date back to the age of dinosaurs.These habitats provided shelter from firestorms that raged in the eucalyptus forests atop the sandstone plateaus.The tree’s habit of resprouting from the base (coppicing) probably helped it recover from occasional fires within the deep, generally moist ravines.The generic name commemorates this park and is derived from an Australian aboriginal word meaning “watch out, look around you”—an appropriate warning for anyone hiking the complex canyons and precipitous sandstone escarpments characteristic of the tree’s habitat.About forty trees in a deep narrow canyon turned out to be an undescribed species.
Search for dating of events from tree growth and wood structure:
They were named Wollemi pine (is the sole living member of its genus.