- Herbarium ID: NHIC
- Accession Number: MJO56091
- Scientific Name: Carex x knieskernii Dewey (C. arctata x C. castanea)
- Family Name: Cyperaceae
- Location: Approx. 8 km along Mamainse Mountain Rd., at Carp River bridge, N of Hwy 17, N of Batchawana Bay, Lake Superior, Ont.
- District Located: Algoma
- Longitude/Latitude: 84.60056W / 47.00583 N
- Habitat: undefined
- Notes: [no data]
- Collector: M.J. Oldham & W.D. Bakowsky
- Collection Number: 22194
- Collection Date: 19-Jun-1999
- Determined by: M.J. Oldham
- Annotation by: A.A. Reznicek March 24.