Urn Haircap
VU

Urn Haircap

Pogonatum urnigerum

UnknownLCEULCEU

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Pogonatum_urnigerum

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

The Urn Haircap faces significant pressure from habitat degradation due to agricultural expansion and urban development across its range. Climate change poses an additional threat through altered precipitation patterns and temperature increases that affect the moist conditions essential for this moss species. Pollution from agricultural runoff and atmospheric deposition further compromises the water quality and soil chemistry required for healthy populations.

Threat summary

Habitat

The Urn Haircap typically grows in moist, acidic soils in woodland clearings, heathlands, and disturbed ground including roadsides and quarries. This moss species favors areas with consistent moisture levels and partial shade, often establishing on bare or sparsely vegetated mineral soils.

Other threatened species in Polytrichaceae

VU

Hercynian Haircap

Oligotrichum hercynicum

Unknown
Strict HaircapVU

Strict Haircap

Polytrichum strictum

Unknown
VU

little wolverine moss

Psilopilum cavifolium

Unknown
Lesser Smoothcap MossVU

Lesser Smoothcap Moss

Atrichum angustatum

Unknown

Frequently asked questions

Why is Urn Haircap classified as Vulnerable?
Urn Haircap is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. The Urn Haircap faces significant pressure from habitat degradation due to agricultural expansion and urban development across its range. Climate change poses an additional threat through altered precipitation patterns and temperature increases that affect the moist conditions essential for this moss species. Pollution from agricultural runoff and atmospheric deposition further compromises the water quality and soil chemistry required for healthy populations.
Where does Urn Haircap live?
Urn Haircap occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Urn Haircap?
The main threats to Urn Haircap are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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