Violet Crystalwort
Riccia huebeneriana
Conservation status data sourced from the IUCN Red List of Threatened Species.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Riccia_huebeneriana
Taxonomy & Classification
Kingdom
Plantae
Phylum
Marchantiophyta
Class
Marchantiopsida
Order
Marchantiales
Family
Ricciaceae
Genus
Riccia
Violet Crystalwort belongs to the family Ricciaceae, order Marchantiales, within the Marchantiopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Violet Crystalwort faces severe threats from habitat destruction and degradation of its specialized wetland environments. The species' extremely limited distribution and specific ecological requirements make it highly vulnerable to environmental changes, with remaining populations at risk from agricultural conversion, water pollution, and climate-induced alterations to moisture regimes.
Key Facts
Habitat & Distribution
Violet Crystalwort occurs in temporary pools, wet soil surfaces, and seasonally flooded areas in open habitats. The species requires specific moisture conditions and is typically found on bare, nutrient-rich substrates in agricultural areas, pond margins, and disturbed wetland edges.
Threats
IUCN Red List: Critically Endangered
Violet Crystalwort faces severe threats from habitat destruction and degradation of its specialized wetland environments. The species' extremely limited distribution and specific ecological requirements make it highly vulnerable to environmental changes, with remaining populations at risk from agricultural conversion, water pollution, and climate-induced alterations to moisture regimes.
Altered hydrology from drainage and water management
Habitat loss and fragmentation from agricultural expansion
Water pollution and eutrophication
Climate change affecting moisture availability
Trampling and disturbance from human activities
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). Violet Crystalwort (Riccia huebeneriana). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/violet-crystalwort