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.

Grovisv'sthyr lies in shallow earth, his dragon grass swaying gently even if there is no breeze around, he lies calm and still in waiting for a hapless passer by to become his next meal. He prefers to surprise and devour passing humans, though a curious rabbit, or unsuspecting deer serves his menu just as well. Grovisv'sthyr has very tough vines, and they do not seem as flexible as others of his kind, unable to use them to entangle his prey he often has to devise methods of creating traps with them, placing them ready to spring and enclose a meal, rather than restrain it. He seems to emit a low rumble after every meal while resting in satisfaction and anticipation of possible dessert.