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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 Pavonia odorata (Hina plant)
P Peucedanum ostruthium (Masterwort)
P Phyllanthus acidus (Indian Gooseberry; Otaheite Gooseberry)
P Phyllanthus niruri (Seed On The Leaf)
P Plantago ovata (Blond Psyllium; Indian Plantago; Ispaghula; Psyllium; Spogel Seeds)
P Plectranthus amboinicus (Amboini Coleus; Country Borage; Cuban Oregano; French Thyme; Indian Borage; Mexican Mint; Soup Mint; Spanish Thyme)
P Populus tacamahacca (Balm Of Gilead)
P Portulaca oleracea (Purslane; Verdolaga)
P Ptychopetalum olacoides (Muira Puama)
P Quercus alba (White Oak)
P Quercus infectoria (Aleppo Oak; Dyer's Oak; Gall Oak)
P Quercus phellos (Willow Oak)
P Quercus robur (English Oak)
P Quercus rubra (Northern Red Oak)
P Quercus stellata (Post Oak)
P Quercus suber (Cork Oak)
P Quercus velutina (Black Oak)