- Herbarium ID: NHIC
- Accession Number: MJO8788
- Scientific Name: Sisymbrium altissimum L.
- Family Name: Brassicaceae
- Location: Near Oak Grove Camp, approx. 2 km upstream from mouth of Rainy River and 14 km NW of Rainy River P.O., Ont.
- District Located: not specified
- Longitude/Latitude: 94.69167W / 48.81556 N
- Habitat: Roadside ditch.
- Notes: Rare and local, single plant seen.
- Collector: M.J. Oldham & W. Bakowsky
- Collection Number: 17981
- Collection Date: 8-Aug-1995
- Determined by: A.A. Reznicek Oct 1995.
- Annotation by: [no data]