'Thorn bushes' in the Bible

“When a fire gets out of control, spreads to thornbushes, and consumes stacks of cut grain, standing grain, or a field, the one who started the fire must make full restitution for what was burned.

All of them will come and settlein the steep ravines, in the clefts of the rocks,in all the thornbushes, and in all the water holes.