The Mandrake is a small Unversed with dark green skin, wide hips, and short legs. It has green and light green highlights on its body, and it lacks arms. The Mandrake has a spherical, white head that is partially surrounded by a dark green "collar," and its eyes are red and set in a sorrowful expression. A red marking between the Mandrake's eyes resembles a mouth. The Mandrake's most prominent feature is the three white, leaflike blades atop its head. These blades end in pale green, arrowhead-like tips.
In Kingdom Hearts Birth by Sleep Final Mix, the Mandrake receives a palette swap that gives it an orange body with yellow highlights. The leaflike blades on its head are changed to a light shade of yellow-green.
From a distance, Mandrakes launch sharp leaves at their opponents which can be deflected back at them to deal damage or dodged by jumping. When approached, these Unversed leap out of the ground and hover in midair, spewing poisonous pollen. It is best to wait for this attack to conclude before countering. Otherwise, one risks being poisoned. One can be confused if a Mandrake's Panic Attack makes contact, but if it is successfully blocked, the Unversed will be left open to damage from Counter Hammer, Counter Rush, or Counter Blast.