The article discusses the botanical nomenclature ability of Tzeltan children. With the benefit of retrospective data, the results of a recent study indicate that the ability to name plants has remained relatively constant in the Tzeltal Maya community of Mahosik in Chiapas, Mexico, over the past 30 years in the face of sociopolitical, economic, and environmental change. The study replicates research on Tzeltal children's acquisition of botanical terminology conducted in the same community in 1968. This article while being primarily concerned with the ethnobotanical knowledge among Tzeltal Maya children, discusses the social change during this period of thirty years in that region.