Delfino Oak Tree

Delfino Oak Trees are a species of tree. Though their name suggests a connection to Isle Delfino, they are not endemic to it. They first appear within the Mario Kart: Double Dash!! iteration of Luigi Circuit and Mario Circuit, which respectively return in Mario Kart DS and Mario Kart Wii as classic courses. The majority of them appear on the outskirts of the course, watching the race, but a couple of them appear on the racetrack itself. If a racer bumps into them, the racer immediately comes to a stop. All of them gently bob and sway while remaining firmly planted.

Delfino Oak Trees can also be seen in the background of the Mario Circuit stage from Super Smash Bros. Brawl, which reappears in Super Smash Bros. for Wii U and Super Smash Bros. Ultimate, again flanking the racetrack.