By means of this spell, a druid is able to cause grass in the room to grow
into a sea of writhing vines that will entangle creatures who attempt to
flee from the druid during combat. The grass will not actively take part
in any fighting, and merely serves to ensnare victims who are deemed as the
druid's foe. A successful saving throw versus reflex will allow a victim
to avoid the vines an escape the room.