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.

The demanding life of an adult dark green dragon leaves little room for imagination, and in fact Ressen's rational mind is her proudest possession. Despising the abundance of non-literal imagery in languages across the world, Ressen the metaphor hunter is on a personal crusade to wipe out as much of it as she can, one idiom at a time.<br/>Ressen has taken her soapbox to many locations, although most of these have been in grassy clearings. In the past, she has invited other intellectual dragons into the spotlight to debate linguistics, but she is most well-known for her attempts to debunk popular sayings in front of audiences. As part of her most famous presentation, where she tackled "a chain is only as strong as its weakest link", she used several of her vines as a substitute for a chain and proved beyond doubt that the real answer was "it depends".<br/>At the moment, however, all of Ressen's future appearances are on hold; she hasn't yet obtained a stitch in time suitable for testing.