Silver Willow

Only a few have ever been documented. One of the reasons is because they are only inhabited in the Thinsilver Forest, however the main reason would be because they resemble regular trees. These tree creatures seem to simply wait for other creatures to come close enough to them until it's too late. Their multiple scythe-like limbs suddenly come to life and attack whatever has come near them. No one knows why they attack in this way exactly. Whether it's a terratorial thing, or the way they feed themselves, nobody has any accounts about that.
Typically, these creatures will be deeper in Thinsilver Forest. The only hint we have to possibly spotting one before it attacks is that the trees they resemble seem to be a little smaller than the ones around them. However, making that distinction isdifficult without a decent amount of experience; something that nobody on record to this day has.