Murray Island - Native
Schizostachyum sp. (NATIVE)

Yes there is a Native Australian bamboo ! 

Murray Island hails from far North Queensland (Torres Strait) grows well in sub-tropical  and coastal areas.  Has a broad tropical leaf mass -  due to its bushy nature makes a good green screen with visible culms lower down, smaller variety with a dark green leafy canopy.   

For those people who want a large green leafed bamboo - which is an "Aussie" .  Plant 1.25 m apart for dense cover.

Best to plant this variety in warmer areas through the Spring/Summer months.