Ironwood is a type of tree. It grows in the Sonoran Desert.
Indigo tree
Bottlebrush Tree
Tamarind
That would be a juniper tree.
cherry tree cypruss tree cedar tree chestnut tree
dogwood and Douglas fir
Pistacia.
gnarl
peach pecan
At the beginning of the game but after that you can not change it anymore.
Deal is the best I can come up with
Possibly Juniper