Clearing some confusion between hardwood & softwood.
The categories do not actually have any relevance to their actual hardness. The categorization applies to their leaf structure. A hardwood has broad leaves. These typically lose their leaves in the fall, offering the beautiful color changing landscapes that often define what most people think of as Autumn. Hardwoods then reproduce in the spring bearing fruit, nuts, or flowers. In contrast, softwoods are conifers. Their needle like leaves endure the cold and reproduce by dropping seeds from their cones.
Balsa is an example of a hardwood that is in fact softer than the great majority of the softwood category. The other side of the coin has the Douglas Fir and Pacific Yew as examples of softwoods which are harder than most hardwoods.