Loki Tree is a type of tree first mentioned in Episode 20-"We Are Family, Part 2" The tree was was never shown, but it was mentioned by Gobber. It is shown to have a horrible smell, and the ash of the Loki tree could be used to apply black color. This type of tree grows only in one place: Outcast Island. Since Outcast Island is a dry and rocky area, this might suggest that the Loki tree doesn't need much moisture and soil minerals, and it might be a dry desert vegetation. The name of this tree is named after the Norse god Loki.