What is the basis for dividing the plant kingdom into systematic groups?

Plants are traditionally divided into two main groups: higher and lower plants.
Higher plants are a type of plant in which tissue differentiation is inherent. The development of specialized tissues was a significant condition for the ascent of plants to land. The result of this output was the division of the plant body into organs: root, stem and leaf. The group of higher plants includes: mosses, ferns, lycopods, gymnosperms and angiosperms.
Lower plants. The traits that determined the lower plants (the absence of division into root, stem and leaves, as well as the absence of tissue differentiation) are not decisive in modern science. The fundamental differences between lower and higher plants at the moment are considered to be the structure of cells, metabolism. Lower plants are represented by bacteria and blue-green algae (the super kingdom of prokaryotes), lichens (eukaryotes), and algae.