On this world, massive evergreen forests of the hardy jagga tree cover most of the prime continent. The other regions of Pech that are not covered by forest are mainly inhospitable ranges of rock cliffs and jagged mountains.
It is from Pech's deep forests that the Kroot originated, and there, they live within arboreal colonies in family groups known as "kindreds," led by wise and ancient Kroot called Shapers.
Most make their homes, nestled amongst the higher branches of the trees, from animal hides and regurgitated dead wood pulp.
- Rogue Trader: Into the Storm (RPG), pg. 47