SN

• Digitalis


  Digitalis purpurea, D. lanata
• Strophantus


  Strophantus komber, S. hispidus
• Cascara sagrada


  Rhamnus purshianus
• Frangula


  Rhamnus frangula
• Aloe


  Aloe barbadensis, Aloe elongate
• Rhubarb


  Rheum officinale, R. palmatum, R. emodin
• Alexandria Senna


  Cassia senna, C. acutifolia
• Tinnevelly Senna


  Cassia augustifolia
• Mexican Sarsaparilla


  Smilax aristochiafolia
• Honduras Sarsaparilla


  Smilas regelii
• Quillaja


  Quillaja saponaria
• Gogo bark


  Entada scandens
• Senega


  Polygala senega
• Condurango


  Masdenia condurango
• Wild cherry


  Prunus serotina, Prunus viginiana
• Black mustard


  Brassica nigra, B. juncea
• White mustard


  Brassica alba
• Rue


  Ruta graveolens
• Bitter Orange


  Citrus aurantium
• Sweet Orange


  Citrus sinensis
• Vanilla


  Vanilla planifolia, V. fragrans, V. tahitensis
• Poplar bud


  Populus candicans, P. tacamahacca
• Viburnum prunifolium


  Viburnum prunifolium
• Aspidosperma


  Aspidosperma quebracho-blanco
• Hamamelis


  Hamamelis viginiana
• Mezereum


  Daphne mezereum
• Xanthoxyllum


  Xanthoxylum clavaherculis