Abstract
Herbalism, or the activity of preparing and selling medicinal plants, has been going through a phase of renewal since the 1970’s, thanks to the actions of various participants whose technical practices and scientific approaches markedly differ. Among them, are the farmer-herbalists, who grow and pick medicinal plants, which they transform and commercialise, mobilising the traditions of popular plant medicine relayed by ethnobotany. Ethnobotany, a field of study which focuses on the relationships between plants and societies, is being invested by new players who, independently from academic institutions, work to collect popular naturalistic knowledge. This doctoral thesis proposes to shed light on the dynamics underlying the relationship that farmer-herbalists establish with the plant world, and on their use of ethnobotany as an argument to legitimise their practices. It appears that, through an exchange of knowledge about the medicinal properties of plants, institutions of research and conservation on the one hand, farmer-herbalists and ethnobotanists on the other hand, both contribute to the constitution of a collective body of knowledge on plants which promotes therapeutic autonomy. The thesis also emphasizes that the farmer-producers are particularly attentive to the vulnerabilities of both humans and plants, and that they take the plants’ intentionality into consideration – a defining characteristic of their herbalistic practices. The field data was collected in an array of varied, though intermingled, contexts: conservation and scientific institutions, the various arenas of French herbalism, and the farms of the farmer-herbalists.