Marsh Sedge
Carex buxbaumii
Conservation status data sourced from the IUCN Red List of Threatened Species.
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Carex_buxbaumii
Taxonomy & Classification
Kingdom
Plantae
Phylum
Tracheophyta
Class
Liliopsida
Order
Poales
Family
Cyperaceae
Genus
Carex
Marsh Sedge belongs to the family Cyperaceae, order Poales, within the Liliopsida class.
Species Profile
Species profile data sourced from the IUCN Red List of Threatened Species.
Marsh Sedge faces severe threats from widespread wetland habitat loss and degradation due to agricultural conversion, urban development, and altered hydrology from drainage projects. Climate change is intensifying these pressures by altering precipitation patterns and increasing drought frequency in critical wetland ecosystems. Conservation status may vary by region or assessment authority, but populations continue to decline across much of the species' range.
Key Facts
Habitat & Distribution
Marsh Sedge occurs in calcareous wetlands, including alkaline marshes, wet meadows, prairie potholes, and edges of shallow lakes and ponds. The species typically grows in areas with fluctuating water levels and mineral-rich soils, often in association with other sedges and wetland grasses.
Threats
IUCN Red List: Critically Endangered
Marsh Sedge faces severe threats from widespread wetland habitat loss and degradation due to agricultural conversion, urban development, and altered hydrology from drainage projects. Climate change is intensifying these pressures by altering precipitation patterns and increasing drought frequency in critical wetland ecosystems. Conservation status may vary by region or assessment authority, but populations continue to decline across much of the species' range.
Altered hydrology from water management projects
Climate change impacts on wetland water levels
Urban development and infrastructure expansion
Wetland drainage and conversion to agriculture
Invasive species competition in degraded habitats
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). Marsh Sedge (Carex buxbaumii). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/marsh-sedge