Where do I get steeleaf

[unholywar23]

Simple question

 

[Spasticon]

It's a twilight forest item found only in the twilight forest.

More specifically: It is found in chests in the Minotaur Labyrinths.

http://twilightforest.wikispaces.com/Steeleaf

 

[Yuka]

I think its from labyrinths in the twilight Forest.
Edit: Woops, someone already beat me to it.