8 Different Types of Moss with Interesting Facts and Pictures

Last Updated on November 8, 2023

Mosses are a very important part of the plant life of the planet. They were the first to colonize the terrestrial environment and, therefore, thanks to them, large and complex plants such as vascular plants could later appear and develop. Musk usually grows on surfaces such as soil, rocks, and trees.

What is Moss?

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Bryophyte plants are divided into liverworts, hornworts, and mosses which are the group that concerns us. Mosses are bryophitic non-vascular plants. Non-vascular plants are those that do not have xylems or phloems that allow them to distribute water and nutrients through their structure.

These are small plants, which tend to spread in the form of a tablecloth along surfaces that are sometimes quite extensive. They are chlorophyll plants, with which they can carry out photosynthesis and owe their generally green color to the chlorophyll pigments.

There are the main characteristics of mosses:

  • They are very primitive plants.
  • They are very small plants.
  • They have a high dependence on environmental humidity and water in the soil or medium to which they cling.
  • They can thrive in a wide variety of habitats.
  • They tend to form an important part of the biomass of the environments in which they are found.

Types of Moss

Of all bryophyte plants, only mosses account for about 70%. These, in addition to being numerous, are very varied and are also the only bryophyte plants that come to form plant masses of remarkable size in an environment. Given their great diversity, mosses are classified into 8 different types:


This is by far the most abundant and representative type of mosses: 95% of all of them are included here.

Most of them are divided into acrocarpic mosses, among which are some of the most drought-resistant mosses, and pleurocarps, growing much more horizontally than the previous ones and giving rise to grass-like aspects.

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Usually called sphagnum, the members of this type are mosses that are very easy to recognize due to their particular morphology, which is very reminiscent of small succulent plants.

They are the creators and a vital component of an entirely unique ecosystem: the raised bogs.

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These mosses grow in cold climates, usually siliceous rocks. They are reddish or dark in color and form very small vegetation.

There are about 100 types of mosses of this type and they stand out for their particular capsules, with a shape reminiscent of a Chinese lantern.

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There are about 370 mosses of this class, among which are the largest mosses, such as the Australian Dawsonia Superba, which is almost 50 centimeters high.

They are mosses of great complexity in their anatomy, with specialized cells for the conduction of water and sugars.

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This type of moss was not discovered until the 19th century when it was found in the Himalayan mountains. These are species with only 4 chromosomes per cell, very fragile, and with a size below 1 centimeter.

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They are dioecious, which means that the female and male sexual organs are found on different plants. In addition, these mosses have mushrooms that support the capsules.

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They are formed exclusively by species Oedipodium griffthianum, a moss that can be found in the coldest parts of America and Euroasia as well as in some islands of the North Atlantic.

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They are mosses that have a large amount of chlorophyll and are recognized by their rhizoid bases. They are very rare in the southern hemisphere, practically all being in the north.

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Classification of Moss

Mosses are fascinating small plants that often grow in damp and shady environments. In this section, we will discuss three main groups of mosses, namely Bryophyta, Marchantiophyta, and Anthocerotophyta.


Bryophyta, also known as true mosses, contains more than 12,000 species. They are distributed throughout the world except in salt water and are commonly found in moist, shady locations. Some of them can carpet woodland and forest floors, adding to the beauty of the landscape. In the phylum Bryophyta, there are six classes. These include Takakiopsida, Sphagnopsida, Andreaeopsida, Andreaeobryopsida, Polytrichopsida, and Bryopsida. A few bryologists argue that the Takakiopsida and Sphagnopsida classes should be considered separate phyla due to their unique characteristics.


The Marchantiophyta, or liverworts, are another group of mosses with around 9,000 species. They are close relatives of the Bryophyta and are also found in damp, shady places. Liverworts have a flat, lobed, ribbon-like appearance, which distinguishes them from the more leafy true mosses. Although they share some features with the Bryophyta, liverworts have a different reproductive method and unique structures called gemmae cups.


The third group of mosses, Anthocerotophyta, is commonly known as hornworts. They have around 200 species, making them the smallest group among the three. Hornworts get their name from their distinctive spore-producing structures that resemble horns. They have a symbiotic relationship with cyanobacteria, which enables them to fix nitrogen from the atmosphere, thus enriching the soil they grow in. Like their counterparts, hornworts thrive in damp and shady environments.

Unique Characteristics of Moss

Mosses are fascinating little plants with some truly unique characteristics that set them apart from other plant species. We’ll be diving into these intriguing features that make mosses so interesting to learn about.

One of the most remarkable features of moss is that they are nonvascular plants, which means they lack specialized tissues to transport water and nutrients like the vascular plants do. This is the primary reason mosses remain small in size and grow predominantly in damp, moist, and shady environments. They absorb water and nutrients directly from their surroundings instead of relying on roots and other structures.

Mosses are amazingly resilient and adaptable, thriving in a wide range of habitats including swamps, forests, and even up on high mountains. With more than 12,000 known species of mosses, each one possesses its unique features and growth habits. Generally, mosses can be classified into two growth habits: acrocarpous and pleurocarpous. Acrocarpous mosses tend to grow upright and don’t have branching stems, resembling miniature conifer trees, while pleurocarpous mosses are more sprawling and have a branching growth pattern.

Another fascinating characteristic of mosses is their reproductive mechanism. Instead of producing seeds like many other plants, they reproduce through spores. These spores are released from tiny structures called sporophytes, and they disperse through the air or water. Once they land in a suitable environment, they can grow into new moss plants.

Finally, mosses play an essential ecological role in many ecosystems. They help break down exposed substrata, releasing vital nutrients that can be used by more complex plants. Their ability to retain water and provide a damp environment also makes them an essential habitat for many microorganisms and insects. Best of all, they’re highly effective at absorbing pollutants and heavy metals from the environment, playing a key role in keeping our planet clean and healthy.

Frequently Asked Questions

What are some common moss species?

There are more than 12,000 species of moss found throughout the world. Some common types of moss include Sheet Moss (Hypnum cupressiforme), which can be found on every continent except Antarctica. It grows in various climatic conditions, often lives on wood, tree branches, or soil, and forms soft tufts of foliage.

Can you identify moss by its appearance?

Mosses can vary greatly in appearance, ranging from too small to see to over 40 inches long. They often grow in moist, shady environments. Identifying moss species based on appearance can be quite challenging, but some physical characteristics can help, such as their color, which can range from dark green to brown. In general, a closer look at the moss structure and habitat can provide important clues to its species.

How can I recognize moss on trees?

Moss usually grows on trees in damp and shady areas where they form green patches or cushions on the bark. They can also be found on rocks or soil, depending on the species. Some species, like the Sheet Moss, can grow directly on tree branches, while others prefer the shady forest floor.

What are some interesting moss names?

Mosses have a variety of unique and intriguing names based on their characteristics or habitat, such as the aforementioned Sheet Moss or the more whimsical Fairy Puke Moss and Goblet Moss. Each name can give a hint to the moss’s appearance or ecological niche, adding an element of fascination to these ancient plants.

What are some examples of moss genera and species?

Within the moss division (Bryophyta), there are numerous genera and species that showcase the diversity of these nonvascular plants. Some examples include the genus Sphagnum, which contains the peat moss found in bogs, and the genus Dicranum, or the fork mosses, known for their rigid, elongated leaves. Other common moss genera include Bryum, Polytrichum, and Tortula, each containing a wide array of moss species adapted to various environments and habitats.

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