Spore Plant (Fallout: New Vegas)

A spore plant is a mutated form of some Venus-fly-trap-like plant.

It has basically two ways of attacking. One is a spike which it spits at its enemies. The other form is a bite with its thorned maw. The Spore plants were grown inside Vault 22 as part of the Vault's botanical and agricultural experiments. The spores given off by the plants mutated many of the Vault's inhabitants into Spore carriers.