I LOVE burled wood.
In fact, it's my favorite wood-look/veneer.
What is burled wood? Its an unusual pattern formed under the bark due to a stress or fungus/mold the tree suffered at some point.
Kinda sad to think the tree has a growth due to such extreme circumstances and that growth is highly prized by woodworkers!
I have a pair of kidney-shaped end tables with delicate Louis XV style legs, metal ormolus and black marble tops - and a veneer of burled wood. I think the wood is maple but I'm not positive.
I love the tables and will have them until the day I keel over.