Can Crataegus douglasii be found in Québec?

• Main Author: Dickinson, Timothy
• Format: Conference Object
• Language: English
• Published: 2020
• Subjects: Crataegus; Douglas hawthorn; Québec; biogeography; Glacial Lake Agassiz-Ojibway; Hudson Bay; Pacific; Hudson; Glacial Lake
• Online Access: https://zenodo.org/record/4290646; https://doi.org/10.5281/zenodo.4290646

The North American Douglas hawthorn, C. douglasii Lindl., is widespread in the Pacific Northwest, with a disjunct occurrence in the Upper Great Lakes basin. In addition, two Ontario specimens document the occurrence of this species in the Hudson Bay drainage, near Lake Abitibi. Unlike other Ontario...