# Iceland Moss (*Cetraria islandica*)

Iceland Moss is a unique plant that grows in cold, rocky areas. It's not really a moss but a lichen that can survive harsh conditions. People use it in traditional medicine and cooking.

- **Category:** [Fungi](https://www.snappit.app/explore/categories/fungi)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Habitat:** Mountain regions
- **Also known as:** Cetraria islandica, Icelandic Moss

![Iceland Moss](https://inaturalist-open-data.s3.amazonaws.com/photos/273328041/medium.jpg)

Photo: arthur_haendler, CC BY 4.0 · [iNaturalist](https://www.inaturalist.org/photos/273328041)

## Appearance

The Iceland Moss is a unique, shrubby lichen with flattened, branched lobes that range from greenish-brown when wet to brittle, brownish-gray when dry. Its intricate, tufted structure often has reddish-brown tips, making it distinct from true mosses or other ground covers.

## Taxonomy

- **Kingdom:** Fungi
- **Phylum:** Ascomycota
- **Class:** Lecanoromycetes
- **Order:** Lecanorales
- **Family:** Parmeliaceae
- **Genus:** Cetraria

## Interesting facts

- It can survive extreme cold and even being buried under snow for months!
- It's actually a lichen, a super team of fungus and algae living together!
- People once used it to make dyes for coloring wool vibrant shades.
- Reindeer and caribou rely on Iceland Moss as a vital winter survival food.

## Special abilities

- **Moisture Magnet:** Iceland Moss can absorb moisture directly from the air and rain, helping it stay hydrated even in dry, windy environments.
- **Arctic Survivor:** It can dry out almost completely and then rehydrate when moisture returns, allowing it to thrive in harsh, freezing polar regions.
- **Air Eater:** Iceland Moss gets all its energy from sunlight and nutrients from the air and rain, so it doesn't need soil to grow.

## Measurements & details

- **Height:** 3-10 cm
- **Edible:** Yes
- **Toxicity:** None
- **Lifecycle:** Perennial

## Ecological connections

- **Eaten by:** Reindeer/Caribou (*Rangifer tarandus*) — A crucial winter food source
- **Eaten by:** [Moose](https://www.snappit.app/explore/moose) (*Alces alces*) — Occasionally browses on it
- **Eaten by:** Domestic Sheep (*Ovis aries*) — Grazed by sheep in some regions

## Traits

- [Lichen](https://www.snappit.app/explore/traits/lichen): This trait describes a composite organism resulting from a symbiotic association between a fungus and a photosynthetic partner, typically an alga or cyanobacterium.
- [Shade Tolerant](https://www.snappit.app/explore/traits/shade-tolerant): Shade tolerant plants are adapted to grow and thrive in areas with low light levels, requiring less direct sunlight.
- [Cold Hardy](https://www.snappit.app/explore/traits/cold-hardy): Cold hardy plants are able to withstand low temperatures and freezing conditions without significant damage.
- [Medicinal](https://www.snappit.app/explore/traits/medicinal): Medicinal plants possess chemical compounds that can be used for therapeutic purposes to treat illnesses or maintain health.
- [Drought Tolerant](https://www.snappit.app/explore/traits/drought-tolerant): Drought-tolerant plants can survive and flourish in conditions with limited water availability.
- [Edible](https://www.snappit.app/explore/traits/edible): Edible plants are those parts of a plant that are considered safe for human consumption.
- [Mountain](https://www.snappit.app/explore/traits/mountain): This habitat trait identifies species found in mountainous regions, characterized by high elevation, steep slopes, and varying climate zones.

## Collections

- [Fungi](https://www.snappit.app/explore/collections/fungi)
- [Plants](https://www.snappit.app/explore/collections/plants)

## Safety

**Danger:** 1/5 · Very low

Iceland Moss is safe to touch but should not be eaten without adult supervision.

## Frequently Asked Questions

### How to identify Iceland Moss?

Compare the cap shape, the underside, the stem and base, and whether the fungus grows on wood or soil. Some fungi have gills, others pores or teeth. A cap seen only from above often hides the most useful features. Mushroom Identifier: upload a photo and compare the visible details.

### How tall is Iceland Moss?

3-10 cm

### Is Iceland Moss edible?

Yes

### Is Iceland Moss toxic?

None

### What is Iceland Moss's lifecycle?

Perennial

### Where is Iceland Moss usually found?

Mountain regions

## More Fungi

- [Field Mushroom](https://www.snappit.app/explore/field-mushroom) (*Agaricus*)
- [Button Mushroom](https://www.snappit.app/explore/button-mushroom) (*Agaricus*)
- [Portobello Mushroom](https://www.snappit.app/explore/portobello-mushroom) (*Agaricus*)
- [Shiitake](https://www.snappit.app/explore/shiitake) (*Lentinula*)

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Source: [Iceland Moss: Facts & Places to See — Snappit](https://www.snappit.app/explore/iceland-moss)