Carex obnupta

Slough sedge (Carex obnupta, Cyperaceae) is a grass-like perennial native to western North America from British Columbia to California, growing up to 4 feet tall on upright, angled stems. It spreads via rhizome networks to form dense beds and colonies. Dangles pistillate and sometimes staminate spikes on peduncles; the hard, tough, shiny perigynium (fruit covering) is generally dark in color.

Slough sedge is found naturally in wet, often saline habitats such as wetlands. Detailed cultural requirements, pest and disease associations, and cultivar data have not been documented in the profile. The profile is a stub awaiting enrichment from authoritative sources.