"Plant","Part","Low PPM","High PPM","StdDev","Reference"
"Acacia decurrens","Plant",,,,"--"
"Acacia nilotica","Plant",,,,"--"
"Acacia melanoxylon","Plant",,,,"--"
"Ailanthus altissima","Bark",,,,"--"
"Alnus glutinosa","Bark",,,,"--"
"Bryonia alba","Root",,,,"--"
"Cinchona spp","Bark",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Cola acuminata","Seed",,,,"--"
"Corylus avellana","Bark",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Crataegus sp.","Plant",,,,"--"
"Crataegus laevigata","Fruit",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Crataegus rhipidophylla","Fruit",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Cuscuta europaea","Root",,"30000.0",,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Dryopteris filix-mas","Rhizome",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Gleditsia triacanthos","Seed",,,,"--"
"Hamamelis virginiana","Bark",,,,"--"
"Humulus lupulus","Fruit",,,,"ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes."
"Hypericum perforatum","Plant",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Krameria triandra","Root",,,,"--"
"Menyanthes trifoliata","Leaf",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Oenothera biennis","Plant",,,,"--"
"Pterocarpus marsupium","Wood",,,,"ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes."
"Ptychopetalum olacoides","Plant",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Quercus suber","Cork",,,,"--"
"Taraxacum officinale","Root",,,,"--"
"Theobroma cacao","Seed",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Theobroma cacao","Plant",,,,"--"
"Tilia sp.","Leaf",,,,"--"