Achillea millefolium (Yarrow)
Acorus calamus (Sweet flag)
Aletris farinosa (True unicorn)
Collinsonia canadensis (Stone root)
Commiphora molmol (Myrrh)
Cynara scolymus (Artichoke)
Gentiana lutea (Gentian)
Humulus lupulus (Hops)
Inula helenium (Elecampane)
Juniperis communis (Juniper)
Melaleuca alternifolia (Tea tree)
Mentha piperita (Peppermint)
Rheum officinalis (Rhubarb)
Taraxacum officinale (Dandelion, Lion's tooth)
Thymus vulgaris (Thyme)
Valeriana officinalis (Valerian)
Verbena officinalis (Vervain)
Zingiber offiniale (Ginger)

References