What plant resembles cacti per Harry Potter The Creature Vault by Jody Revenson?

In "Harry Potter: The Creature Vault" by Jody Revenson, the plant that resembles cacti is called the "Horklump." These plants have a spiky appearance similar to that of cacti, but they are actually more akin to a type of magical fungus. Horklumps are known for their ability to reproduce quickly and are often considered a nuisance in the wizarding world.