Brambleghast is a tumbleweed-like Pokémon that is similar to its pre-evolution Bramblin, only larger and with more thorns. Most of the branches that compose its loose, spherical body are brownish yellow with light purple tips on top, while the base of its body and its center front branch are entirely dark brown.
The center front branch has two smaller branches near its base, which together with Brambleghast's eyes form a face. The two smaller branches act as Brambleghast's "lips", which can move to form expressions such as grinning or frowning. Brambleghast has small, diamond-shaped, leaf-like eyes; the right eye is black with a thin red pupil, and vice versa for the left eye. Each eye is surrounded by what appears to be a much smaller tumbleweed made of three stalks. The eyes don't blink and instead flip and rotate to express Brambleghast's emotions.
Brambleghast catches prey using its branches, completely enveloping them. Once accomplished, it will not let go of the prey until all of its life energy has been drained. Brambleghast lives in arid regions such as deserts, where the wind tumbles and rolls it around. There are rare occasions of massive outbreaks of Brambleghast, which can bury entire towns.
Evolution
Brambleghast evolves from Bramblin.
(For specifics on this Pokémon's Evolution in the games, refer to Game data→Evolution data.)
Origin
Brambleghast appears to be based on tumbleweeds — certain types of plants which, when mature, have most of their cells dry out and die so that the wind can pick them up and allow them to disperse their seeds, hence Brambleghast's Ghost type and Ability. Some tumbleweed species are capable of causing outbreaks, like the hairy panic. Brambleghast's secondary Ghost type may also be derived from the association of tumbleweeds with ghost towns and empty deserts.
All of this also suggest that Brambleghast may be strongly based on the Alicornio [3], a demon from the Murcian folklore that hides himself on an tumbleweed and appears on days of strong winds to snatch the souls of the passersby.
The way it feeds on its prey by enveloping them inside and releasing them after fully consumed may be inspired by the feeding habits of jellyfish and other cnidarians.
Name origin
Brambleghast may be a combination of bramble and aghast.
Anohoragusa may be derived from the phrase あのほら草 ano hora kusa ("Um... Look! Grass") and horror.