Where can I find wholesale suppliers of manzanita wood and grapevine wood?

I’m a OOAK (One of a Kind) Fantasy artist and I am searching for a source (other than ebay please) where I can find bulk Manzanita burls, grapevine wood and other wood to use for fairy sculpture bases and artwork. Thanks!
I am looking for an actual source that someone can refer me to, like another fellow artist who has experience with a supplier they can recommend.

Your best bet would be to type in "Manzanita burls" or "Grapevine pieces", then hit your search button and see all the sites that pop up.