- Herbarium ID: NHIC
- Accession Number: MJO75943
- Scientific Name: Carex rupestris All.
- Family Name: Cyperaceae
- Location: Polar Bear Provincial Park, approx. 28 km S of Hudson Bay coast and 38 km W of Hook Pt. on James Bay, Ont.
- District Located: Kenora
- Longitude/Latitude: 82.80111W / 54.88 N
- Habitat: Locally common on summit of dry beach ridge.
- Notes: With Dryas integrifolia, Empetrum nigrum, Vaccinium uliginosum, Carex glacialis.
- Collector: M.J. Oldham & D.A. Sutherland
- Collection Number: 26071
- Collection Date: 6-Jul-2001
- Determined by: M.J. Oldham
- Annotation by: [no data]