The Yōkai Cactus (妖怪サボテン Yōkai Saboten) are a cactus Yōkai that resemble ordinary cacti, but are capable of consuming humans, animals and Yōkai alike.
In the 1968 anime, the Yōkai Cactus resembles a bulbous cactus, covered in thorns that tapers down to the thin pot it is planted in. When it is about to consume it grows a flower on top of it.
Within the 1985 anime, the Yōkai Cactus is a bulbous cactus, colored dark green, that is covered in clusters of thorns and stays in a dark clay pot. It grows a flower on top of it to consume its victims, where then extra bulbs grow afterward.
In the 1996 anime, the Yōkai Cactus is tall, bright green, covered in a multitude of thorns, and is planted in a clay pot, which is colored dull brown. The top produces a flower as it is about to consume, growing more bulbs equal to the number of victims it has consumed.
Within the 2007 anime, Yōkai Cacti resembles ordinary cacti, but have a vein-like texture, colored green with purple vertical stripes, white-colored thorn clusters cover them and they stay within a brown flower pot. After consuming a person, they can grow a red flower with purple leaves at the top, where they consumed the victim, additional bulbs sprout around their body after consuming more victims.
In the 2018 anime, the Yōkai Cactus resembles ordinary cacti, being green and covered in thorn and is planted in a brown clay pot. It grows extra bulbs as it consumes more victims, and may produce a red flower on top of itself.