plant · GBIF taxon 2683084
Common Haircap Moss
Polytrichum communeAlso known as Great Goldilocks, Common Hair-Moss, Haircap Moss
Common haircap moss forms dense, deep green carpets resembling miniature pine forests on damp forest floors and bog margins. Its exceptionally tall, wiry stems are anchored by a complex system of rhizoids that mimic true roots, helping it absorb water directly from wet soils. During dry spells, the narrow, tooth-edged leaves curl tightly inward against the stem to conserve moisture, unfurling instantly when rain returns.
Moisture-lovingEvergreenSpore-bearing
1 / 7- diet
- Photosynthetic (water, carbon dioxide, and sunlight)
- family
- Polytrichaceae
- threats
- Habitat drainage, peat extraction, and severe drought
- life Span
- Perennial (colonies can persist indefinitely)
LC
Safe to observe at a normal distance.
- Check the leaves: Touch the stiff, needle-like leaves gently to feel their surprisingly rigid, plastic-like texture.
- Look for capsules: Search for the upright, box-like spore capsules topped with hairy, golden-brown hoods in summer.
- Observe hydration: Watch how dry, shriveled patches rapidly expand and turn vibrant green after a light rain.