Marsh Sedge
CR

Marsh Sedge

Carex buxbaumii

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Carex_buxbaumii

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

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.

Threat summary

Habitat

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.

TERRESTRIAL· major

Other threatened species in Cyperaceae

Round-headed Club-rushCR

Round-headed Club-rush

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Tawny SedgeCR

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Two-stamen SedgeCR

Two-stamen Sedge

Carex diandra

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Flat-sedgeVU

Flat-sedge

Blysmus compressus

Unknown

Frequently asked questions

Why is Marsh Sedge classified as Critically Endangered?
Marsh Sedge is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. 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.
Where does Marsh Sedge live?
Marsh Sedge occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Marsh Sedge?
The main threats to Marsh Sedge are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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