Irish Moss
ExplorePlants
Irish Moss
Chondrus crispus
Irish Moss is a special sea plant that grows in the ocean. It looks like green or purple seaweed and is often found on rocky shores. People use it in food and for fun crafts!
Habitat: Coastal areas
Appearance
The Irish Moss has flattened, fan-like fronds that can range from deep purplish-red to greenish-brown. It forms dense, bushy tufts, often clinging to rocks, and feels somewhat cartilaginous and firm.
KingdomPlantaePhylumRhodophytaClassFlorideophyceaeOrderGigartinalesFamilyGigartinaceaeGenusChondrus
Category
PlantsRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
It has a super slimy coating to stop other tiny plants from growing on it!
It's used to thicken ice cream, yogurt, and even toothpaste!
Some scientists are studying it to make better medicines for people!
This sea plant was once used by sailors to navigate in foggy weather!
Special abilities
Ability
Tidal Toughness
Irish Moss can dry out and shrivel when the tide is low, then rehydrate and revive when the water returns, allowing it to survive harsh conditions.
Ability
Super Suction Cup
Irish Moss has a strong 'holdfast' that acts like a sticky anchor, helping it cling tightly to rocks and resist powerful ocean waves.
Ability
Protective Jelly
Irish Moss can produce a special jelly-like substance called carrageenan, which helps it retain water and protect itself from drying out.
Measurements & details
- Height
- 5-15 cm
- Edible
- Yes
- Toxicity
- None
- Lifecycle
- Perennial
Ecological connections
eaten by
Green Sea Urchin
Strongylocentrotus droebachiensis
A primary grazer of algae on rocky shores.
eaten by
Common Periwinkle
Littorina littorea
Grazes on algae on intertidal rocks.
shelters
Baltic Isopod
Idotea baltica
Finds refuge and food among its fronds.
Traits
Medicinal
Medicinal plants possess chemical compounds that can be used for therapeutic purposes to treat illnesses or maintain health.
Salt Tolerant
Salt tolerant plants can withstand and grow in conditions with elevated salinity levels in the soil or water.
Fiber
This human use trait identifies species that yield natural fibers, used by humans for textiles, rope, paper, and other manufactured goods.
Edible
Edible plants are those parts of a plant that are considered safe for human consumption.
Rapid Growing
Rapid growing plants exhibit accelerated growth rates, quickly increasing in size and biomass within a short period.
Coastal
Coastal habitats are dynamic environments located along the interface between land and sea, influenced by tides, waves, and saltwater.
Marine
Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life.
Also known as
Carrageen
Collections
Safety
Danger
1/5 · Very low
Always wash your hands after touching sea plants, and don't eat any without asking an adult.
Frequently Asked Questions
How tall is Irish Moss?
5-15 cm
Is Irish Moss edible?
Yes
Is Irish Moss toxic?
None
What is Irish Moss's lifecycle?
Perennial
Where is Irish Moss usually found?
Coastal areas
Snap Map
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