See the below image for the Vascular plant diagram. So the vascular system consists of xylem and phloem which are bundled together forming a vascular bundle. Vascular plants contain these conducting tissues in different types of arrangements. This was in brief about the vascular plants and tissues.
Ferns are seedless vascular plants. Vascular plants have conducting, also referred to as vascular or liquefied, tissues that transport water, minerals, and photosynthetic materials throughout the plant’s roots, stems, and leaves. They differ from nonvascular plants, which do not have conducting tissues, and require water for fertilization.
Vascular plants are defined by having tissue that can transport water, glucose, sucrose, and other molecules. Organisms such as liverworts, hornworts, mosses, cyanobacteria, and lichens can not be considered vascular.