They are small flowerless plants that usually grow in dense green clumps or mats, in damps or shady location.
The individual plants are usually composed of simple, one-cell thick leaves, covering a thin stem that supports them
but does not conduct water and nutrients (non-vascular).
Mosses do not have seeds or any vascular tissue. They are typically 1-10 cm tall, though some species are much larger.
Some case studies, mosses are generally of little use to humans or animals,
although it is sometimes eaten in times of famine.
The main commercial use of mosses is for decorative purposes, such as in gardens and in the florist trade.
Some often used in rock gardens or with water gardens, ferns, or ponds because it needs so little maintenance.
See more photos of mosses here.