noun
ethnobotany
Academic field studying the relationship between people and plants, including traditional knowledge and uses.
民族植物学は、先住民の植物利用を研究する学問です。
Ethnobotany is the study of indigenous peoples' use of plants.
Compound of 民族 (ethnic group, people) + 植物学 (botany). The term is a direct translation of the English 'ethnobotany'.