Flora
The Frostfire Forest carries a very different energy from most of the continent, and is one of the only places you can find plants which do not exists anywhere else (including earth). All Flora that grows here glows, with the exception of the larger than life evergreens that create the canopy overhead. If you could see in the forest and pull away the pile of pine needles you would also see that is is covered in the remains of what was once lush undergrowth, leaving you to question what happened to the life that once existed here. Because food here is so scare you cannot live on it and the glowing plants, while all quite useful, are all poisonous to eat. Most wouldn't kill you, but you would have a very very bad day.