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Dr. Duke's Phytochemical and Ethnobotanical databases facilitate in-depth plant, chemical, bioactivity, and ethnobotany searches using scientific or common names. Search results can be downloaded in PDF or spreadsheet form. Of interest to pharmaceutical, nutritional, and biomedical research, as well alternative therapies and herbal products.

Key: A= Biological Activity C= Chemical E= Ethnobotany Plant P= Plant S= Syndrome U= Ethnobotany Use
P Rheum officinale (Chinese Rhubarb)
P Rosmarinus officinalis (Rosemary)
P Sanguisorba officinalis (Greater Burnet)
P Satureja obovata (Iberian Savory; Savory)
P Satureja odora (Scented Pampa Savory)
P Satureja thymbra (Goat Oregano)
P Schoenocaulon officinale (Sabadilla)
P Selenicereus grandiflorus (Night-Blooming Cereus; Queen-of-the-Night)
P Senna obtusifolia (Sicklepod)
P Senna occidentalis (Coffee Senna)
P Sicana odorifera (Cassabanana)
P Siegesbeckia orientalis (Hsi Chien; Saint Paul'Swort)
P Sonchus oleraceus (Cerraja; Sow Thistle)
P Spinacia oleracea (Spinach)