Dark green dragons, once they mature, appear to become an entirely different species. However, this isn’t true. Rather, they burrow underground and get nutrients from their vines. These vines are sometimes referred to as Dragon Grass. These dragons are very violent, and will use their vines to capture, kill, and eat anything that moves, as well as nearby plants. Luckily, their range is limited and they cannot use magic. Dark green dragons tend to be easy to spot since they usually kill all plants around them and thus are usually surrounded by a large clearing.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Cvvioe's name is actually utter nonsense, and it irritates him to no end. He was named as such because his human felt it would be a good idea to use him to remember a 'guess the egg' game—when a vine egg description came up, one person said "Cvvioe!" Needless to say, everyone found it hilarious and it played out as a repeat of the Deathtea incident. Rather than naming him 'Plant-thing' or something along those lines, he got an original, albeit silly, name. Because of this, Cvvioe is well-known for insisting that everyone think before they talk. He often spends his time criticizing his human's lapses of judgement as she speaks, although they do get along.