Black Ivy

Black ivy is rare, but extremely poisonous. Its leaves can be ground into a thin paste and spread upon surfaces to injure those that touch it. Black Ivy grows in most dark corners of the world, so long as there's plenty of space to grow and enough wildlife variety for them to feed, as they use their poison to sedate and kill whatever they come into contact with, before rapidly accelerating the decomposition process to return the nutrients to the soil, allowing them to grow. Black Ivy often grows alongside Lullaby petals as the constant supply of small animals that the Lullaby petal can provide is perfect for Black Ivy, and lethal to the unsuspecting.