Robust Grimmia
Schistidium robustum
Conservation status data sourced from the IUCN Red List of Threatened Species.
Taxonomy & Classification
Kingdom
Plantae
Phylum
Bryophyta
Class
Bryopsida
Order
Grimmiales
Family
Grimmiaceae
Genus
Schistidium
Robust Grimmia belongs to the family Grimmiaceae, order Grimmiales, within the Bryopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Robust Grimmia faces severe threats from habitat degradation and climate change impacts on its specialized rocky environments. The species' extremely limited distribution and specific microhabitat requirements make it highly vulnerable to environmental changes and human disturbances in mountainous regions.
Key Facts
Habitat & Distribution
Rocky outcrops, cliff faces, and boulder fields in mountainous regions, typically growing on acidic rock surfaces in areas with specific moisture and temperature conditions. The species occupies specialized microhabitats on exposed rock surfaces at higher elevations.
Threats
IUCN Red List: Critically Endangered
Robust Grimmia faces severe threats from habitat degradation and climate change impacts on its specialized rocky environments. The species' extremely limited distribution and specific microhabitat requirements make it highly vulnerable to environmental changes and human disturbances in mountainous regions.
Climate change altering temperature and moisture regimes
Habitat degradation from human activities
Air pollution and acid deposition
Extreme weather events
Recreational activities and trampling
National vs Global Threat Status
How this species is assessed at the national level compared to its IUCN global status (CR).
| Country | National Status | Global Status | Comparison |
|---|---|---|---|
| EU | LCLeast Concern | CRCritically Endangered | Lower local risk |
| EU | LCLeast Concern | CRCritically Endangered | Lower local risk |
National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.
Community Sightings
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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). Robust Grimmia (Schistidium robustum). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/robust-grimmia