A term describing a plant with broad, flat leaves. Examples are maples, oaks and alders. Broadleaf trees and their wood are often called hardwoods whether their wood is particularly hard or not. Some common broadleaf trees like oaks and maples have pretty hard wood.
A class of trees that have broad, flat leaves of many different shapes; most are deciduous; also called hardwood because most broad-leaved trees have harder wood than do conifers. Examples include oak, hickory, maple and ash.