Keep your helmet on, there are sparrow oaks in this forest.
The hardest part about dealing with a ratwood tree is by the time you find it, there are dozens more you haven't found yet.
A coveted tree, 100 words
High above the lands of the living, where frost and howling of the wind reign, the morbid monument to a faith long dead calls the deceased on a last pilgrimage.
Minor Cultural Modifier: The culture believes, for the soul to leave the body, the corpse' eyes must be open. So any member of that culture takes care any dead body they find has its eyes open. Doubly true for those they kill themselves, for then the corpse will surely rise as an undead hunting him.