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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 Dioscorea alata (Greater Yam; Winged Yam)
P Dioscorea bulbifera (Air Potato; Potato Yam)
P Dioscorea composita (Barbasco)
P Dioscorea pentaphylla (Mountain Yam)
P Dioscorea sp. (Wild Yam)
P Dioscorea villosa (Wild Yam)
E Dioscorea japonica (Huang Tu; Yama-No-Imo; T'U Yu; Shan Yao; Yeh Shan Yao)
E Dioscorea bulbifera (Niga-Kashu; Huang Yao Zi; Yam)
E Dioscorea sativa (Ch'Uan Pei Hsieh)
E Dioscorea tokoro (Oni-Dokoro)
E Dioscorea villosa (Yabani Hindelmasi)
E Dioscorea hispida (Gadong; Bitoele; Gadung; Sijapa; Nami)
E Dioscorea sp (Name Amarillo; Yam; Huang Yao Tzu; Shu Yu)
E Dioscorea quinqueloba (Shan Pei Hsieh; Shu Yu Chiu; Kuo Shan Lung)