- Herbarium ID: NHIC
- Accession Number: MJO18923
- Scientific Name: Apera interrupta (L.) P.Beauv.
- Family Name: Poaceae
- Location: Obegewong Campground, S end of Lake Wolsey, Ont.
- District Located: Manitoulin
- Longitude/Latitude: 82.545W / 45.78139 N
- Habitat: Locally common, sandy campsites.
- Notes: New to Manitoulin Island (cf. Morton & Venn 1984).
- Collector: M.J. Oldham & Mireille Delisle-Oldham
- Collection Number: 9598
- Collection Date: 7-Jul-1989
- Determined by: M.J. Oldham
- Annotation by: S.J. Darbyshire, A.A. Reznicek.