Wiktionary
timberless
a. Without timber.
Usage examples of "timberless".
So they crawled on persistently, and eventually, ahead of them over the desert, white tents glowed pink in the sunlight like toadstools in a great timberless pasture, and their first trip was nearing its end.
It is said that around the timberless fields there was a wide fringe of old fire-scarred trees, with no undergrowth beneath their branches, and that as they died no kind of large vegetation took their place.
From afar came the song of a fellow presence, steeped in jungle-moist richness, and a call of wonder from a young one high in the snowed, timberless mountains.