DENDROLOGY

Detailed explanation-1: -Non-vascular plants do not possess roots, stems, or leaves, but seedless vascular plants have roots, stems, and leaves.

Detailed explanation-2: -Vascular plants are known as tracheophytes. Vascular tissues include xylem and phloem. They allow plants to grow tall in the air without drying out. Vascular plants also have roots, stems, and leaves.

Detailed explanation-3: -In Summary: Seedless Vascular Plants With the development of the vascular system, there appeared leaves to act as large photosynthetic organs, and roots to access water from the ground. Small uncomplicated leaves are microphylls.

Detailed explanation-4: -Nonvascular seedless plants, as their name implies, lack vascular tissue. Vascular tissue is specialized tissue that transports water, nutrients, and food in plants. As they lack vascular tissue, they also do not have true roots, stems, or leaves.