Azalea trees can be generated on icebergs.
X: -153 Y:77 Z:-63
Azalea trees are no longer generating
The azalea trees that mark lush caves can spawn on icebergs. I'm not sure its a bug, but it looks really weird.
Azalea trees generated on icebergs in frozen oceans
Azalea trees can generate in more than two blocks of water