Have been photographing this for years, marveling at the patterns this creates, but never knew there is a name for it. And what a lovely name.
"Canopy shyness is the tendency of trees to reduce competition between adjacent trees by maintaining a space between branches."
Canopy Shyness: http://www.venerabletrees.org/canopy-shyness/
Rain Tree Raagaas: https://plus.google.com/u/0/photos/106491954401233999557/albums/5975107197985931905