Pharmacognosy

thumb|Ethnobotanist Richard Evans Schultes at work in the Amazon in the 1940s Ethnobotany is an interdisciplinary field at the interface of natural and social sciences that studies the relationships between humans and plants. It focuses on traditional knowledge of how plants are used, managed, and perceived in human societies. Ethnobotany integrates knowledge from botany, anthropology, ecology, and chemistry to study plant-related customs across cultures. Researchers in this field document and analyze how different societies use local flora for various purposes, including medicine, food, relig

thumb|350px|Dioscorides’ [[Materia Medica, copy in Arabic, describes medicinal features of various plants.]]

marijuana used medicinally

Phytochemistry is the study of phytochemicals, which are chemicals derived from plants. Phytochemists strive to describe the structures of the large number of secondary metabolites found in plants, the functions of these compounds in human and plant biology, and the biosynthesis of these compounds. Plants synthesize phytochemicals for many reasons, including to protect themselves against insect attacks and plant diseases. The compounds found in plants are of many kinds, but most can be grouped into four major biosynthetic classes: alkaloids, phenylpropanoids, polyketides, and terpenoids.

traditional Chinese herbal therapy

unrefined medications in their raw or natural forms

aqueous product of the hydrodistillation of volatile organic substances

species of plant

species of plant

species of plant

literary work

Chamaelirium is a genus of flowering plants containing the single species Chamaelirium luteum, commonly known as blazing-star, '''devil's bit, false unicorn, fairy wand, and helonias'''. It is a perennial herb native to the eastern United States. It can be found in a variety of habitats, including wet meadows and deciduous woodlands.

traditional herbal tonic

species of plant