Small-leaved Watercress
Nasturtium microphyllum
Conservation status data sourced from the IUCN Red List of Threatened Species.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Nasturtium_microphyllum
Taxonomy & Classification
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Brassicales
Family
Brassicaceae
Genus
Nasturtium
Small-leaved Watercress belongs to the family Brassicaceae, order Brassicales, within the Magnoliopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Small-leaved Watercress faces severe threats from habitat degradation and loss of suitable freshwater environments due to pollution, agricultural runoff, and urban development. Water quality deterioration and hydrological modifications to streams and wetlands have significantly reduced available habitat for this aquatic plant species.
Key Facts
Habitat & Distribution
Small-leaved Watercress inhabits shallow freshwater environments including slow-flowing streams, springs, ditches, and marshy areas with clean, nutrient-rich water. The species typically grows in partially submerged conditions along stream margins and in wet meadows where water levels remain relatively stable.
Threats
IUCN Red List: Critically Endangered
Small-leaved Watercress faces severe threats from habitat degradation and loss of suitable freshwater environments due to pollution, agricultural runoff, and urban development. Water quality deterioration and hydrological modifications to streams and wetlands have significantly reduced available habitat for this aquatic plant species.
Agricultural runoff and chemical contamination
Habitat loss from urban development
Hydrological modifications and water extraction
Water pollution and eutrophication
Competition from invasive plant species
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). Small-leaved Watercress (Nasturtium microphyllum). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/small-leaved-watercress