👉 Exoascaceous is a term used in the field of plant biology to describe a type of exoskeleton, or external covering, that is found on the outermost layers of plants. These exoscales are typically made up of hard, waxy material and can help protect the plant from damage by insects and other organisms. Exoascaceous exoscales are often found in deciduous trees like oak, maple, or cherry, as well as in conifers like fir or pine.