Irontrees were a type of tree native to Mustafar, notably found within the forest of Corvax Fen. Many had been planted by the Alazmec of Winsit, in a vain attempt to replenish Mustafar's ecosystem. Most of the trees had died off due to the planet's harsh condition.
- Star Wars: Episode IX The Rise of Skywalker (First appearance)
- Star Wars: The Rise of Skywalker: Expanded Edition
- Star Wars: The Rise of Skywalker: The Visual Dictionary (First identified as Irontree)