What kinds of naturally collected North American hardwoods can be used as driftwood safely?

[Bill Calvert]

I'm looking to create a native species only north american biotope tank with naturalistic hardscape materials. What types of hardwoods can I use safely to create this effect, and how can I prepare them to be used in the tank?

Edited May 20, 2021 by Bill Calvert

[Patrick_G]

Manzanita comes to mind immediately because of it’s wide commercial availability. 
My tank is stocked with gathered driftwood from Puget Sound. It’s aged and sun bleached. 

[Bill Calvert]

Just now, Patrick_G said:

Manzanita comes to mind immediately because of it’s wide commercial availability. 
My tank is stocked with gathered driftwood from Puget Sound. It’s aged and sun bleached. 

I live in central Pennsylvania. I guess that would be important info for what woods are available haha! I have access to lots of maple, birch, oak, hickory, and sycamore, but other than sycamore, I'm not sure what would be safe in the tank.

[JettsPapa]

I'm pretty sure you'd be okay with oak and hickory, assuming you get pieces that are well seasoned (completely dry with no bark), though I haven't tried them.  I've had bois d'arc in my 65 for over a year and haven't had any issues.  I don't suppose you have access to any of that?

[ccurtis]

Manzanita is a no go in California. They are protected. It is illegal to cut, injure or move that species of plant in the state. Just a heads up if anyone goes out gathering in California. 

Edited May 25, 2021 by ccurtis