Tree Fringewort
Ptilidium pulcherrimum
Conservation status data sourced from the IUCN Red List of Threatened Species.
42
Countries
Taxonomy & Classification
Kingdom
Plantae
Phylum
Marchantiophyta
Class
Jungermanniopsida
Order
Ptilidiales
Family
Ptilidiaceae
Genus
Ptilidium
Tree Fringewort belongs to the family Ptilidiaceae, order Ptilidiales, within the Jungermanniopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Tree Fringewort faces severe threats from habitat loss due to deforestation, air pollution, and climate change impacts on its specialized bryophyte communities. This delicate liverwort is highly sensitive to environmental changes and requires very specific microhabitat conditions that are increasingly rare and fragmented.
Key Facts
Habitat & Distribution
Occupies humid, shaded microhabitats on tree bark, decaying logs, and rock surfaces in old-growth temperate and boreal forests. Requires consistently moist conditions with stable temperature and humidity levels typically found in undisturbed forest understories.
Threats
IUCN Red List: Critically Endangered
Tree Fringewort faces severe threats from habitat loss due to deforestation, air pollution, and climate change impacts on its specialized bryophyte communities. This delicate liverwort is highly sensitive to environmental changes and requires very specific microhabitat conditions that are increasingly rare and fragmented.
Air pollution and acid rain degradation
Climate change altering moisture regimes
Habitat loss and fragmentation from deforestation
Loss of old-growth forest ecosystems
Found in 42 Countries
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). Tree Fringewort (Ptilidium pulcherrimum). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/tree-fringewort