Electric Horsehair Lichen
Bryoria bicolor
Electric Horsehair Lichen (Bryoria bicolor) is a distinctive fruticose lichen that forms pendant, hair-like strands hanging from tree branches, displaying characteristic pale greenish-gray coloration with darker banded sections. This epiphytic species plays a crucial ecological role in forest ecosystems by providing nesting material for birds, food for wildlife, and contributing to nutrient cycling through its ability to capture atmospheric moisture and particles.
Taxonomy & Classification
Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Lecanorales
Family
Parmeliaceae
Genus
Bryoria
Electric Horsehair Lichen belongs to the family Parmeliaceae, order Lecanorales, within the Lecanoromycetes class.
Species Profile
Electric Horsehair Lichen (Bryoria bicolor) is a distinctive fruticose lichen that forms pendant, hair-like strands hanging from tree branches, displaying characteristic pale greenish-gray coloration with darker banded sections. This epiphytic species plays a crucial ecological role in forest ecosystems by providing nesting material for birds, food for wildlife, and contributing to nutrient cycling through its ability to capture atmospheric moisture and particles.
Electric Horsehair Lichen faces severe decline primarily due to air pollution, particularly sulfur dioxide and nitrogen compounds from industrial activities and vehicle emissions, which are highly toxic to epiphytic lichens. Habitat loss through deforestation and urban development has eliminated many suitable host trees, while climate change is altering precipitation patterns and temperature regimes that this sensitive species requires.
Key Facts
Habitat & Distribution
Bryoria bicolor grows exclusively on the bark of mature coniferous trees, particularly spruce, fir, and pine species in cool, humid montane and boreal forests. The species requires stable microclimatic conditions with high air moisture levels and minimal air pollution, typically found in undisturbed old-growth forest environments.
Threats
IUCN Red List: Endangered
Electric Horsehair Lichen faces severe decline primarily due to air pollution, particularly sulfur dioxide and nitrogen compounds from industrial activities and vehicle emissions, which are highly toxic to epiphytic lichens. Habitat loss through deforestation and urban development has eliminated many suitable host trees, while climate change is altering precipitation patterns and temperature regimes that this sensitive species requires.
Air pollution from sulfur dioxide and nitrogen compounds
Habitat loss through deforestation and urban development
Acid rain degradation
Climate change altering temperature and precipitation patterns
Loss of suitable host trees
Community Sightings
Report a sightingNo community sightings yet. Be the first to report!
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
This page: SpeciesRadar (2025). Electric Horsehair Lichen (Bryoria bicolor). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/electric-horsehair-lichen