Frazão-Moreira, Amélia, and Ana Maria Carvalho. “Gendered Plants and Plant Categorization by Gender: Classificatory and ‘storied’ Knowledge in Trás-Os-Montes, Portugal”. Ethnobotany Research and Applications 21 (June 15, 2021): 1–20. Accessed September 28, 2025. https://ethnobotanyjournal.org/index.php/era/article/view/2453.