Terrae Dragons are primarily herbivores who prefer to eat from the tops of trees. However, due to their massive size, they must rely on small, specialized scales to absorb and convert energy from the sun. Since they live in tightly-knit groups, this form of energy absorption helps preserve the forests in which these dragons reside.

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.

Tree is a member of the Unrare clan. She helps with clan wars. She claims to be a master of disguise, and that she could have a dragon look right at her and not notice her, but this isn't exactly true. Every disguise she has tried always failed in some way. One of her most famous fails was when she tried to disguise as a patch of grass with a tree on it; the tree fell over, injuring her very badly. Because of this, she is nicknamed "Tree Terrae."