DENDROLOGY

Detailed explanation-1: -Nonvascular plants are distinguished from other classifications of plants including angiosperms (flowering plants), gymnosperms, and ferns because they lack flowers, fruits, seeds, leaves, roots, and stems. Mosses, hornworts, and liverworts are nonvascular plants called Bryophytes.

Detailed explanation-2: -Vascular plants include flowering plants, and are distinguished in part by their use of specialized cells known as xylem that bring water and nutrients from the roots to the leaves.

Detailed explanation-3: -Fern allies. Bryophytes. Non-vascular plant. Pteridophyte.