Arctium lappa (Burdock)
Baptisia tintoria (Wild indigo)
Berberis vulgaris (Barberry)
Calendula officinalis (Marigold)
Chionanthus virginicus (Fringe tree)
Cinnamomum spp. (Cinnamon)
Commiphora molmol (Myrrh)
Galium aparine (Cleavers, Bed straw)
Glycyrrhiza glabra (Licorice)
Leonurus cardiaca (Motherwort)
Linum usitatissimum (Flax, Linseed)
Momordica charantia (Bitter melon)
Polygonum multiflorum (Fo-Ti, He-shou-wu)
Rhamnus purshiana (Cascara)
Rheum officinalis (Rhubarb)
Rumex crispis (Yellow dock, Curly dock)
Taraxacum officinale (Dandelion, Lion's tooth)

References