HARMS, Vernon L. The Native Roses of Sasatchewan. Blue Jay, [S. l.], v. 32, n. 3, 1970. DOI: 10.29173/bluejay4181. Disponível em: https://bluejayjournal.ca/index.php/bluejay/article/view/4181. Acesso em: 6 apr. 2025.