Chara filiformis
Local name: trådsträfse
Conservation status data sourced from the IUCN Red List of Threatened Species.
Taxonomy & Classification
Kingdom
Plantae
Phylum
Charophyta
Class
Charophyceae
Order
Charales
Family
Characeae
Genus
Chara
Chara filiformis belongs to the family Characeae, order Charales, within the Charophyceae class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Chara filiformis faces severe threats from habitat degradation and water quality deterioration in its freshwater environments. Eutrophication from agricultural runoff and urban pollution has dramatically reduced suitable habitat, while climate change-induced alterations to water chemistry and temperature further compromise this sensitive aquatic macrophyte's survival.
Key Facts
Habitat & Distribution
Clear, calcium-rich freshwater lakes, ponds, and slow-moving streams with sandy or muddy substrates, typically in shallow waters up to 10 meters deep. Requires low-nutrient, alkaline conditions and is particularly sensitive to water quality changes.
Threats
IUCN Red List: Critically Endangered
Chara filiformis faces severe threats from habitat degradation and water quality deterioration in its freshwater environments. Eutrophication from agricultural runoff and urban pollution has dramatically reduced suitable habitat, while climate change-induced alterations to water chemistry and temperature further compromise this sensitive aquatic macrophyte's survival.
Eutrophication from agricultural and urban runoff
Habitat destruction and wetland drainage
Water pollution and chemical contamination
Climate change affecting water temperature and chemistry
Invasive species competition
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
This page: SpeciesRadar (2025). Chara filiformis (Chara filiformis). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/tradstrafse