Oarweed (Laminaria digitata): learn about this iodine-rich brown seaweed, its traditional uses, compounds, culinary recipes and thyroid precautions.

Oriental sweetgum (Liquidambar orientalis): traditional uses of its storax resin, phytochemicals, preparation forms, recipes and safety tips for external use.

Woad (Isatis tinctoria): explore its traditional uses, phytochemistry, preparation, synergies, contraindications and the history of its blue dye.

Wild garlic (Allium ursinum): names, sulfur compounds, traditional uses, recipes, drug interactions and how to tell it apart from toxic look-alikes.

Tea tree (Melaleuca alternifolia): traditional uses of melaleuca oil on the skin, preparation methods, safe dilution and contraindications.