Four trunks with flower spikes.

The trunks are the Xanthorrhoea preissii,
which are native Australian grass trees.
They have very long and bunched, grass-like leaves,
that emerge from a central base.
The flower spike can reach a height of nearly 2.5 meter.
These Xanthorrhoea preissii in the Australia Garden in Cranbourne,
are more then 400 years old.

detail flower spike
http://www.pbase.com/image/117885550" >