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Sheng Jiang / Fresh Ginger (Zingiber officinale) -
Shepherd's Purse (Capsella bursa-pastoris) -
Siberian Rhubarb (Rheum rhaponticum) -
Skullcap, American (Scutellaria lateriflora) -
Slippery Elm (Ulmus rubra) -
Solomon's Seal (Polygonatum biflorum) -
Spearmint (Mentha spicata) -
St. John's Wort (Hypericum perforatum) -
Star Anise (Illicium verum) -
Sumac (Rhus coriaria) -
Sweet Violet (Viola odorata) -
Sweetgum (Liquidambar styraciflua) -
Tao Ren / Peach Kernel (Prunus persica) -
Tea Tree (Melaleuca alternifolia) -
Thyme (Thymus vulgaris) -
Tribulus (Tribulus terrestris) -
Turkey Rhubarb (Rheum palmatum) -
Turkey Tail (Trametes versicolor) -
Usnea (Usnea barbata) -
Usnea Lichen (Usnea spp.) -
Uva Ursi (Arctostaphylos uva-ursi) -
Valerian (Valeriana officinalis) -
Vervain (Verbena officinalis) -
Violet Leaf (Viola odorata)