Is alder hardwood or softwood

A soft hardwood is the way in which alder trees (Alnus spp) tend to be described.

Specifically, it is a member of the birch family (Betulaceae). It therefore is considered a hardwood. But its wood cooperates with the intricate detailing that people often like to see carved into furniture. Because of its cooperative nature, it therefore is considered among the softer of the hardwoods.