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Norfolk Bladder-moss

Physcomitrium eurystomum

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Overview

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

Norfolk Bladder-moss faces severe habitat loss due to agricultural intensification and urban development across its limited range in eastern England. The species is particularly vulnerable to changes in water table levels and soil chemistry, as it requires specific moisture conditions and nutrient-poor substrates. Climate change poses an additional threat through altered precipitation patterns and increased drought frequency, which can desiccate the shallow soils where this moss establishes.

Threat summary

Habitat

Norfolk Bladder-moss grows on bare, nutrient-poor sandy or chalky soils in open habitats including field margins, tracks, and disturbed ground. It typically colonizes ephemeral sites with seasonal moisture fluctuations, particularly favoring areas with winter flooding followed by summer drying.

Frequently asked questions

Why is Norfolk Bladder-moss classified as Endangered?
Norfolk Bladder-moss is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Norfolk Bladder-moss faces severe habitat loss due to agricultural intensification and urban development across its limited range in eastern England. The species is particularly vulnerable to changes in water table levels and soil chemistry, as it requires specific moisture conditions and nutrient-poor substrates. Climate change poses an additional threat through altered precipitation patterns and increased drought frequency, which can desiccate the shallow soils where this moss establishes.
Where does Norfolk Bladder-moss live?
Norfolk Bladder-moss 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 Norfolk Bladder-moss?
The main threats to Norfolk Bladder-moss 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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