Mandragora

The Mandragora is a creature based on the real-life Mandrake plant, which has vaguely human-shaped roots and is often attributed to be an aphrodisiac, or have magical properties. Legends of lethal, screaming Mandragoras date as far back as Josephus, and the myth is prevalent enough that they even appear in the Harry Potter books and films.

Appearances
In Castlevania: Aria of Sorrow, the Mandragora is a harmless plant when in the ground, but when uprooted by a skeleton it screams, severely damaging Soma if nearby. Its soul is a screen-wide damaging blast.
 * Castlevania: Aria of Sorrow

In Castlevania: Dawn of Sorrow, the Mandragora uproots itself without the help of a skeleton. It also does less damage. For its soul, Soma tosses an exploding Mandragora like a hand grenade, which does massive damage to enemies. In Castlevania: Portrait of Ruin, the Mandragora functions the same as in Dawn of Sorrow, only without dropping a soul.
 * Castlevania: Dawn of Sorrow
 * Castlevania: Portrait of Ruin