Acacia trees and shrubs belong to the subfamily Mimosoideae and family Fabaceae. This is a hardwood tree family that initially could only be found in its native Australia. Today, it grows all over the world. Thanks to the high grade of acacia wood hardness, it’s a very durable option for flooring. As I mentioned, these floors can last up to 100 years. They can still be great even after 40 years without protection or treatment.