By means of this spell, the character is able to assume the
form of a small, living tree or shrub or a large, dead tree trunk
with a small number of limbs. The closest inspection cannot
reveal that the tree in question is actually a magically
concealed creature. To all normal tests the character is, in
fact, a tree or shrub, although a detect magic spell reveals a
faint transmutation on the tree. While in tree form, the
character can observe all that transpires around the character
just as if the character were in the character's normal form, and
the character's hit points and saves remain unaffected. The
character gains a +10 natural armor bonus to AC but has an
effective Dexterity score of 1. The character is immune to
critical hits while in tree form. All clothing and gear carried
or worn changes with the character.
The character can dismiss tree shape as a free action.