- Herbarium ID: NHIC
- Accession Number: MJO12509
- Scientific Name: Calamagrostis purpurascens R.Br.
- Family Name: Poaceae
- Location: Sleeping Giant (Sibley) Provincial Park, N shore of Lake Superior, Ont.
- District Located: not specified
- Longitude/Latitude: 88.92083W / 48.31611 N
- Habitat: Dry, SE-facing slope at crest of cliff on knees of Sleeping Giant.
- Notes: Uncommon, but at least 30 scattered (mostly rather small) plants seen.
- Collector: M.J. Oldham
- Collection Number: 21018
- Collection Date: 30-Jun-1998
- Determined by: not specified
- Annotation by: [no data]