




Tortula muralis
Wall Screw-moss is a tiny green plant that loves to grow on walls and rocks. It looks like a soft carpet and helps keep the environment healthy by holding onto soil and water.
Habitat: Urban areas
The Wall Screw-moss is a small plant forming dense, velvety mats. Its leaves are bright green when wet, but curl tightly and become duller when dry, giving them a distinctive screw-like appearance. It often grows in circular patches.





Category
PlantsRarity
Common
Danger
1/5 · Very low
Snaps
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Its tiny spores can travel huge distances in the wind, helping it spread to new walls and roofs.
Mosses like this one are among the oldest land plants on Earth, evolving over 450 million years ago!
Some mosses can survive being frozen solid for years, then simply thaw out and start growing again!
Wall Screw-moss doesn't have true roots; it uses tiny rhizoids just to anchor itself, not to absorb water!
Wall Screw-moss can dry out completely and appear dead, only to rehydrate and revive when water becomes available.
Wall Screw-moss has a specialized capsule with twisted 'teeth' that help slowly release its tiny spores into the wind.
Wall Screw-moss can anchor itself to bare, hard surfaces like concrete and rock, thriving where other plants can't.

Cornu aspersum
Snails graze on the moss mats.
Isotoma viridis
Tiny springtails find shelter and moisture within the moss cushions.
Macrobiotus hufelandi
Microscopic water bears live protected within the moss's damp environment.
This trait characterizes plants lacking specialized vascular tissues (xylem and phloem) for transporting water and nutrients.
Drought-tolerant plants can survive and flourish in conditions with limited water availability.
Describes a relationship between two different species where they live in close association, often benefiting one or both.
Describes organisms that break down dead organic material, recycling nutrients back into the ecosystem.
Pertaining to species that are significantly smaller than typical or average for their kind.
This habitat trait indicates species that can coexist with humans in urban and suburban environments, utilizing man-made structures and green spaces.
No aliases listed yet.
Danger
1/5 · Very low
It's safe to touch, but be gentle to protect the moss.
0.5-2 cm
2-5 cm
No
None
Perennial
Wind
Urban areas
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