D6: Arid temperate shrubland, getting close to desert in the hot summers, in the rain shadow of several mountains. An important source of minerals, and also especially aligned with the magic of rocks. Many strange rocks can be found here with crystal patterns that are unique to this place.
I8: Cold peatland, almost constantly shrouded in fog. The peat bogs are full of life, being warmer than the surrounding area. A particular berry can only be found here which can cure most diseases and cause wounds and other injuries to heal at a remarkably fast rate - animals here are quite long-lived. Its leaves make a purple dye.
Viewing post in Playtest Alpha, Thread 4: Biomes!
Mostly plants and animals are indifferent to it, since it doesn't directly act on them. In the dry season, larger rocks tend to move, slowly but subtly, which causes minor problems for burrowing creatures and for plants near them. And the rains dampen this effect, as to the rare large patches of vegetation. In fact, it's possible that this effect would spread further if the environment were not conductive to it manifesting.