[TowerTalk] lightning & trees

[Jim Jarvis]

It was written: 

Tulip Poplars are Very prone to Lightning hits. I have quite  few on my
place that show evidence of hits above 40-50 ft.  A Tulip Poplar that has
been hit will show a "Y" or a "Zag" where the top was when it was hit.

and I wonder:

Why would one species of tree be more likely to be hit by lightning 
than another?   Unless perhaps there is a stand of one species in a
higher location than other trees?

n2ea
jimjarvis at ieee.org