Green Dragons are also sometimes called “earth” dragons. They usually live deep within caves, and have power over the earth. They are capable of launching boulders at high speeds, and can cause earthquakes by slamming down onto the ground.

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.

Big Mama Greeny Dorkface is one of the many children that came from Midas Dorkface's daughters. She is sometimes called "Big Mama" by hatchlings but most of the dragons just call her "Greeny". She is always hungry, however some dragons cope with her, even though Iliza, the adopted daughter of Dapple, cannot stand Big Mama Greeny.

Greeny has a strange personality; she is impatient with food, even though she's nice to her friends and would do anything to eat waffles.