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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 Lactuca virosa (Bitter Lettuce)
P Lagenaria siceraria (Calabash Gourd; White-Flowered Gourd)
P Lagerstroemia indica (Crape Myrtle)
P Lagochilus inebrians (Intoxicating Mint)
P Lantana camara (Lantana; Wild Sage)
P Larrea tridentata (Chaparral; Creosote Bush)
P Latua pubiflora (Latua)
P Laurus nobilis (Bay; Bay Laurel; Bayleaf; Grecian Laurel; Laurel; Sweet Bay)
P Lavandula angustifolia (English Lavender)
P Lavandula latifolia (Aspic; Broad-Leaved Lavender; Spike Lavender)
P Lavandula sp (Lavender)
P Lavandula x hybrida (Hybrid Lavender)
P Lavandula x intermedia (Dutch Lavender; Lavandin)
P Lawsonia inermis (Henna; Jamaica-Mignonette; Mignonette; Mignonette Tree)
P Ledum palustre (Marsh Tea; Wild Rosemary)