Streamside Hygroamblystegium Moss
Hygroamblystegium fluviatile
Conservation status data sourced from the IUCN Red List of Threatened Species.
Photo: (c) Stefan Gey, some rights reserved (CC BY-NC), uploaded by Stefan Gey
Taxonomy & Classification
Kingdom
Plantae
Phylum
Bryophyta
Class
Bryopsida
Order
Hypnales
Family
Amblystegiaceae
Genus
Hygroamblystegium
Streamside Hygroamblystegium Moss belongs to the family Amblystegiaceae, order Hypnales, within the Bryopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Streamside Hygroamblystegium Moss faces severe threats from habitat degradation due to water pollution, altered hydrology from dam construction and water diversions, and climate change impacts on freshwater systems. The species' dependence on specific moisture and water quality conditions in riparian environments makes it extremely vulnerable to human activities that modify natural waterways and their immediate surroundings.
Key Facts
Habitat & Distribution
This moss species inhabits the margins of streams, rivers, and other flowing freshwater bodies, typically growing on rocks, logs, and soil in areas subject to periodic flooding and consistent moisture. It requires clean, well-oxygenated water and is found in riparian zones with stable hydrological conditions.
Threats
IUCN Red List: Critically Endangered
Streamside Hygroamblystegium Moss faces severe threats from habitat degradation due to water pollution, altered hydrology from dam construction and water diversions, and climate change impacts on freshwater systems. The species' dependence on specific moisture and water quality conditions in riparian environments makes it extremely vulnerable to human activities that modify natural waterways and their immediate surroundings.
Climate change affecting water flow patterns
Hydrological alterations from dams and diversions
Riparian habitat destruction and fragmentation
Water pollution and eutrophication
Invasive species competition
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). Streamside Hygroamblystegium Moss (Hygroamblystegium fluviatile). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/streamside-hygroamblystegium-moss