- Herbarium ID: NHIC
- Accession Number: MJO55702
- Scientific Name: Carex umbellata Schkuhr ex Willd.
- Family Name: Cyperaceae
- Location: Oak Grove Camp on Rainy River, approx. 2 km upstream from mouth at Lake of the Woods, Ont.
- District Located: not specified
- Longitude/Latitude: 94.67444W / 48.82472 N
- Habitat: Open rocky ground, roadside/edge of woods.
- Notes:
- Collector: M.J. Oldham & W.D. Bakowsky
- Collection Number: 21787
- Collection Date: 11-Jun-1999
- Determined by: M.J. Oldham
- Annotation by: A.A. Reznicek March 24.