Canadensys: University of Alberta Vascular Plant Herbarium (ALTA-VP)
Canadensys, operated from the Université de Montréal Biodiversity Centre
"136199 - Eschscholzia californica Cham. ssp. mexicana (Greene) C. Clark, University of Alberta Vascular Plant Herbarium." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/12-159687. Accessed 30 Apr. 2025.