It is a variant of xylophobia ("fear of trees, of wood in general"). From Greek 965; 955; 951; (Hyle "Forest, Wood, Material") 966; 959; 946; 959; 962; (fovos "fear"). See dendrophobia ("fear of forests").
It is said of the irrational fear and anguish that bushes, trees and forests generate towards the person who suffers from this disorder.