Pukei is a small wyvern with rough light green scales, a ringed multi-colored tail, and feathered head and arms. Its eyes move independently and are somewhat frog-like. When angry, Pukei's face becomes bright red.
Despite being a wyvern, Pukei-Pukei is a herbivore, mostly feeding on various nuts throughout the Ancient Forest and Wildspire wastes. Despite this, Pukei will become very territorial towards smaller creatures that get too close, though it will flee from anything larger than itself.
Pukei-Pukei's most notable features are its poison spit, and its long tongue, both of which are used extensively in fights. Pukei may also attempt to trample or kick foes. Interestingly, Pukei have also learned that by consuming and storing certain nuts in a throat pouch, they can give their poison attacks certain features. Using scatternuts will give the poison spit extra stunning abilities, while using smokenuts turns the toxic mucous into a deadly cloud.
Pukei-Pukei is vulnerable to fire.
Its head and wings can be damaged, and its tail can be cut.