This chapter documents and analyzes the diversity, cultural relevance, and sustainability dimensions of wild edible flowers in Oaxaca, México. Based on a systematic review of ethnobotanical literature and complementary fieldwork, it presents and discusses 42 species whose flowers are consumed across 26 localities and eight ethnic groups. These plants are deeply embedded in local knowledge systems, cultural identity, and seasonal food practices. Their use contributes to dietary diversity, local economies, and ecological resilience, especially in rural and peri-urban areas. We explore how the consumption, management, and exchange of edible flowers align with five interlinked Sustainable Development Goals (SDGs): Zero Hunger (SDG 2), Reduced Inequalities (SDG 10), Responsible Consumption and Production (SDG 12), Climate Action (SDG 13), and Life on Land (SDG 15). Through integrative analysis, we demonstrate that floriphagy in Oaxaca is not a marginal or nostalgic practice, but a dynamic expression of biocultural heritage that fosters food sovereignty and sustainability. This chapter argues for the inclusion of wild edible flowers in sustainability strategies, educational programs, and policy frameworks aimed at biodiversity conservation, food security, and cultural resilience in the face of environmental and socio-economic change.