- Herbarium ID: NHIC
- Accession Number: MJO6889
- Scientific Name: Eriophorum angustifolium Honck.
- Family Name: Cyperaceae
- Location: Approx. 500 m E of McGregor Bay, E of Hwy 68, La Cloche Peninsula, Ont.
- District Located: Manitoulin
- Longitude/Latitude: 81.76222W / 46.0225 N
- Habitat: Boggy lake margin, with Eriophorum viridicarinatum, uncommon.
- Notes: Not listed for Manitoulin by Morton & Venn (1984).
- Collector: M.J. Oldham
- Collection Number: 16371
- Collection Date: 23-Jun-1994
- Determined by: M.J. Oldham
- Annotation by: A.A. Reznicek 1995.