- Herbarium ID: NHIC
- Accession Number: MJO8106
- Scientific Name: Ambrosia psilostachya DC.
- Family Name: Asteraceae
- Location: Stanley Cemetery, N side of Hwy 11/17, 4.3 km SE of Kakabeka Falls P.O., Ont.
- District Located: not specified
- Longitude/Latitude: 89.56194W / 48.38194 N
- Habitat: Open S-facing hillside N of cemetery, with jack pine, white birch, and white cedar.
- Notes: Uncommon, with Festuca trachyphylla, Schizachyrium purpureum, Carex richardsonii, C. siccata.
- Collector: M.J. Oldham
- Collection Number: 17377
- Collection Date: 23-Jun-1995
- Determined by: not specified
- Annotation by: [no data]