Bulbush

The Bulbush is a species of grub-dog with a backside covered in thick shrubbery.

=In fanon games=

In Pikmin E: Remastered
The Bulbush is a bulborb in Pikmin E: Remastered. It is a large creature, distinguished from its fellow family members due to its green skin coloration. The creature's backside is covered in a large, bush-like coat of fur that helps it blend into its environment.

DrTapeworm's version
The Bulbush is like any other big bulborb but is distinguished by its primarily green coloration. Notably, the creature's backside is covered in moss, making it resemble a shrub from behind while lying down. This slippery moss covering causes Pikmin to have a poor grip on the Bulbush's back, and they will fall off more easily. Attacking the Bulbush's face and eyes is advised, but watch out for its mouth, as it is just as ravenous as any other bulborb.