Material  Scientific name Reference Limitation
Angola weed Roccella fuciformis Ach 21CFR172.510 In alcoholic beverages only
Arnica flowers Arnica montana L., A. fulgens Pursh, A. sororia Greene, or A. cordifolia Hooker 21CFR172.510 In alcoholic beverages only
Artichoke leaves Cynara scolymus L 21CFR172.510 In alcoholic beverages only
Boldus (boldo) leaves Peumus boldus Mol 21CFR172.510 In alcoholic beverages only
Bryonia root Bryonia alba L., or B. diocia Jacq 21CFR172.510 In alcoholic beverages only
Buckbean leaves Menyanthes trifoliata L 21CFR172.510 In alcoholic beverages only
Calcium Pyrophosphate Calcium Pyrophosphate 21CFR182.5223 21 CFR182.8223 Dietary Supplements; Nutrients
Calumba root Jateorhiza palmata (Lam.) Miers 21CFR172.510 In alcoholic beverages only
Centuary Centaurium umbellatum Gilib 21CFR172.510 In alcoholic beverages only
Chirata Swertia chirata Buch.-Ham 21CFR172.510 In alcoholic beverages only
Cork, oak Quercus suber L., or Q. occidentalis F. Gay 21CFR172.510 In alcoholic beverages only
Costmary Chrysanthemum balsamita L 21CFR172.510 In alcoholic beverages only
Dittany (fraxinella) roots Dictamnus albus L 21CFR172.510 In alcoholic beverages only
Elder tree leaves Sambucus nigra L 21CFR172.510 In alcoholic beverages only; not to exceed 25 p.p.m. prussic acid in the flavor
Elecampane rhizome and roots Inula helenium L 21CFR172.510 In alcoholic beverages only
Galanga, greater Alpinia galanga Willd 21CFR172.510 In alcoholic beverages only
Gentian, stemless Gentiana acaulis L 21CFR172.510 In alcoholic beverages only
Germander, chamaedrys Teucrium chamaedrys L 21CFR172.510 In alcoholic beverages only
Germander, golden Teucrium polium L 21CFR172.510 In alcoholic beverages only
Iceland moss Cetraria islandica Ach 21CFR172.510 In alcoholic beverages only
Isopropyl Citrate Isopropyl citrate 21CFR184.1386 The ingredient is used as an antioxidant, a sequestrant and a solvent in margarine, nonalcoholic beverages and in fats and oils.
Iva Achillea moschata Jacq 21CFR172.510 In alcoholic beverages only
Lemon-verbena Lippia citriodora HBK 21CFR172.510 In alcoholic beverages only
Linden leaves Tillia spp 21CFR172.510 In alcoholic beverages only
Maidenhair fern Adiantum capillus-veneris L 21CFR172.510 In alcoholic beverages only
Mullein flowers Verbascum phlomoides L. or V. thapsiforme Schrad 21CFR172.510 In alcoholic beverages only
Myrtle leaves Myrtus communis L 21CFR172.510 In alcoholic beverages only
Oak, English, wood Quercus robur L 21CFR172.510 In alcoholic beverages only
Pansy Viola tricolor L 21CFR172.510 In alcoholic beverages only
Peach leaves Prunus persica (L.) Batsch 21CFR172.510 In alcoholic beverages only; not to exceed 25 p.p.m. prussic acid in the flavor
Pine, white, bark Pinus strobus L 21CFR172.510 In alcoholic beverages only
Poplar buds Populus balsamifera L. (P. tacamahacca Mill.), P. candicans Ait., or P. nigra L 21CFR172.510 In alcoholic beverages only
Red saunders (red sandalwood) Pterocarpus san alinus L 21CFR172.510 In alcoholic beverages only
Rhubarb, garden root Rheum rhaponticum L 21CFR172.510 In alcoholic beverages only
Roselle Hibiscus sabdariffa L 21CFR172.510 In alcoholic beverages only
Rosin (colophony) Pinus palustris Mill., and other Pinus spp 21CFR172.510 In alcoholic beverages only
St. Johnswort leaves, flowers, and caulis Hypericum perforatum L 21CFR172.510 Hypericin-free alcohol distillate form only; in alcoholic beverages only
Sandarac Tetraclinis articulata (Vahl.), Mast 21CFR172.510 In alcoholic beverages only
Serpentaria (Virginia snakeroot) Aristolochia serpentaria L 21CFR172.510 In alcoholic beverages only
Simaruba bark Simaruba amara Aubl 21CFR172.510 In alcoholic beverages only
Stearyl Citrate Stearyl Citrate 21CFR184.1851 The ingredient is used as an antioxidant, an emulsifier, a sequestrant and a surface-active agent in margarine, nonalcoholic beverages and in fats and oils.
Tansy Tanacetum vulgare L 21CFR172.510 In alcoholic beverages only; finished alcoholic beverage thujone free 
Thistle, blessed (holy thistle) Onicus benedictus L 21CFR172.510 In alcoholic beverages only
Veronica Veronica officinalis L 21CFR172.510 In alcoholic beverages only
Vervain, European Verbena officinalis L 21CFR172.510 In alcoholic beverages only
Vetiver Vetiveria zizanioides Stapf 21CFR172.510 In alcoholic beverages only
Woodruff, sweet Asperula odorata L 21CFR172.510 In alcoholic beverages only
Yarrow Achillea millefolium L 21CFR172.510 In beverages only; finished beverage thujone free