The exact physiological basis of crown shyness is not certain. The phenomenon has been discussed in scientific literature since the 1920s.
A prominent hypothesis is that canopy shyness has to do with mutual light sensing by adjacent plants. 
The exact physiological basis of crown shyness is not certain. The phenomenon has been discussed in scientific literature since the 1920s.
A prominent hypothesis is that canopy shyness has to do with mutual light sensing by adjacent plants.
Even trees need their private space, of course!
Scienstists are sooo dense all the time…
