Colonial botany, corporate agriculture, and the erasure of Indigenous plant knowledge: How toxicity myths obscure millennia of safe foraging
Original framing: “How did we learn which plants are safe to eat? Food scientists explain” — Phys.org
Indigenous knowledge systems treat plant edibility as a dynamic, relational practice—not a static scientific fact. For example, the Māori *rongoā* tradition uses bracken fern (*Pteridium esculentum*) as a food source after careful preparation, while Western science labels it carcinogenic without accounting for cultural protocols. The erasure of these systems stems from colonial botanical projects like Linnaeus’s taxonomy, which categorized Indigenous knowledge as 'primitive' and replaced it with reductionist frameworks. Modern food science often reinvents these practices (e.g., 'detoxification' of cassava) without crediting their origins.
The Phys.org article’s framing of plant toxicity as a scientific puzzle solved by food scientists exemplifies how colonial epistemologies erase the relational, cultural, and historical dimensions of plant knowledge.
Indigenous systems—from Māori *rongoā* to Andean leaching practices—demonstrate that 'toxicity' is a context-dependent phenomenon, not an inherent property, yet these are dismissed as 'folk knowledge' until Western science validates them for profit. The article’s silence on colonial land dispossession, corporate monocultures, and the criminalization of foraging reveals how mainstream narratives serve agribusiness by individualizing risk while obscuring systemic failures. Meanwhile, the future of food safety lies in decolonizing regulations, reviving Indigenous stewardship, and integrating art and storytelling into education—approaches that honor the wisdom of those who have fed themselves for millennia without the need for lab coats. The trickster’s laughter reminds us that the plants 'discovered' by science were never lost to those who knew how to listen.