Desert O'Piñon
Chumono
I'll second that. I grew up in northwestern Kansas and North Texas. The plains states are as you describe, for sure. But there are periodic "islands" of trees with potential for decent yamadori.I drove through Nebraska but I don't remember any trees. The kind of place you could watch your dog run away for three days.
Here in the high desert? You like mesquite and sagebrush? lol
Out here, your dog gets loose and you only see him for about 100 yards before he either gets lost in the brown-out or tumbled by the wind.