Woolly Banksia
Banksia baueri
Must see!

Banksia bauerii Creative Commons - Attribution (BY): Bruce Langridge
Woolly banksia has the largest flowerhead of any Banksia species, with up to 1000 flowers on each. The flower spike transforms into a tough cone that needs the intense heat of a forest fire to release its seed.
Look for it in the Australian zone of the Great Glasshouse