CRCritically Endangered

Purple-stalked Pocket-moss

Fissidens osmundoides

Conservation status data sourced from the IUCN Red List of Threatened Species.

01Classification

Taxonomy & Classification

Kingdom

Plantae

Phylum

Bryophyta

Class

Bryopsida

Order

Dicranales

Family

Fissidentaceae

Genus

Fissidens

Purple-stalked Pocket-moss belongs to the family Fissidentaceae, order Dicranales, within the Bryopsida class.

02Description

Species Profile

Species profile data sourced from the IUCN Red List of Threatened Species.

Purple-stalked Pocket-moss faces severe threats from habitat destruction and degradation of its specialized wetland environments. The species' extremely limited distribution and specific ecological requirements make it highly vulnerable to environmental changes and human disturbances. Climate change and altered hydrology patterns further threaten the delicate moisture conditions essential for this moss's survival.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupPlants
03Habitat

Habitat & Distribution

This moss species typically inhabits moist, shaded environments including streambanks, wet rock faces, and areas around springs and seeps. It requires consistently humid conditions and is often found on calcareous substrates in specialized microhabitats within riparian zones.

04Threats

Threats

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IUCN Red List: Critically Endangered

Purple-stalked Pocket-moss faces severe threats from habitat destruction and degradation of its specialized wetland environments. The species' extremely limited distribution and specific ecological requirements make it highly vulnerable to environmental changes and human disturbances. Climate change and altered hydrology patterns further threaten the delicate moisture conditions essential for this moss's survival.

Climate change and altered precipitation patterns

HighOngoing

Habitat destruction and fragmentation

HighOngoing

Hydrological alterations and water management

HighOngoing

Invasive species competition

MediumOngoing

Pollution and water quality degradation

MediumOngoing
07National Status

National vs Global Threat Status

How this species is assessed at the national level compared to its IUCN global status (CR).

CountryNational StatusGlobal StatusComparison
EULCLeast ConcernCRCritically EndangeredLower local risk
EULCLeast ConcernCRCritically EndangeredLower local risk

National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.

Community

Community Sightings

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07Sources

Sources & Attribution

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

National Red Lists: ZSL (2025). National Red List. Zoological Society of London. Available at: https://www.nationalredlist.org

This page: SpeciesRadar (2025). Purple-stalked Pocket-moss (Fissidens osmundoides). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/purple-stalked-pocket-moss

Full citation guide & data usage terms