Jungle Walls (natural)

Jungle Walls are naturally-generating background walls found throughout caves in the Underground Jungle. These naturally occurring walls can be destroyed with a hammer, but will drop nothing. These walls also do not stop enemies from spawning and cannot be used for proper housing.

On the, these walls can be crafted with either Grass Seeds or Jungle Grass Seeds where they can be used like other craftable walls.

History
Mur de jungle (naturel) 丛林墙（天然）