Corymbia tessellaris (syn. Eucalyptus tessellaris), the carbeen, Moreton Bay ash, black butt, is a Ghost gum tree ranging from small to 35 m. tall, forming a lignotuber. Bark rough on lower 1–4 m of trunk, tessellated, dark grey to black, abruptly changing to white-cream smooth bark above that is sometimes powdery. Name from Latin: tessellaris - tessellated, referring to the rough bark in small squares.