Based on properties or function.
Glycosides that have soap like properties are called saponin. Similarly, glycosides that
liberate hydrocyanic acid (HCN) on hydrolysis are known as cyanogenic glycosides.
Acorrdingly the types of glycosides are
Cardiac glycosides
Cyanogenic glycosides
Phenolic glycosides (flavonoids, lignans and other phenolic compounds)
Aldehyde glycosides
Anthraquinone glycosides