- Herbarium ID: SSMF
- Accession Number: 011536
- Scientific Name: Carex vesicaria L.
- Family Name: Cyperaceae
- Location: 17 km from coast, SE of Hannah Bay, near the Ontario-Quebec border, James Bay, Ontario.
- District Located: Cochrane
- Longitude/Latitude: 79.0875W / 51.0875 N
- Habitat: Site 18. Thicket swamp. A rich Alnus rugosa thicket with small clearings of Carex rostrata and Petasites sagittatus.
- Notes: [no data]
- Collector: R.A. Sims
- Collection Number: 616
- Collection Date: 08/08/1977
- Determined by: R.A. Sims
- Annotation by: [no data]