A plant kingdom is separated into five subgroups considering their features. The subgroups are as follows:Thallophyta: Also known as algae, it originates in moist areas. Bryophyta: It has some distinguished body structure like leaf and stem but lacks a vascular structure.Pteridophyta: It has a well-distinguished body structure including stem, roots, leaves, vascular structure, etc.Gymnosperms: This has an absence of flowers and has open seeds.Angiosperms: They have flowers and produce seeds enclosed in a carpel.