harlequin mistletoe
Lysiana exocarpi
  mistletoes are aerial parasitic plants that use other plants to obtain their water and mineral nutrients, but they usually undertake their own photosynthesis through their leaves; they are not known to be parasitoid, such that they willingly kill their hosts, as this would lead to their own demise  
  Serpentine Gorge, West MacDonnell National Park - 16th July 2006