Acorus calamus (origin and % unknown)
Angelica polymorpha (oil, origin and % unknown)
Asari seiboldii (origin and % unknown)
A. sieboldii var. seoulense (origin and % unknown)
Asari forbesii (origin and % unknown)
Asari inflatum (origin and % unknown)
Asari magnificum var dinghugense (origin and % unknown)
Asari caudigerum var cardiophyllum (origin and % unknown)
Atherosperma moschatum (bark oil, % unknown)
Cananga odorata (Ylang Ylang) (isosafrole : origin and % unknown)
Cinnamomum burmannii (China, leaf/twig oil, 97-99%
safrole)
Cinnamomum camphora (root bark oil, 50-80% safrole)
var Yu-Sho Hangchow (China) (wood oil, 2.9% safrole)
var Yu-Sho Kiukiang (China) (wood oil, 0.8% safrole)
var Yu-Sho Nanchang (China) (wood oil, 1.7% safrole)
var Hon-Sho (Japan) (wood oil, 18.1% safrole)
var Ho-Sho (China) (wood oil, 0.2% safrole)
Ho-Sho (Formosa) (wood oil, 7.8% safrole)
Cinnamomum iners (Malaysia, wood oil, high % safrole)
Cinnamomum micranthum (wood oil, 95% safrole)
Cinnamomum oliveri (bark oil, % unknown)
Cinnamonum parthenoxylon (wood oil, Nees variety, 80%
safrole)
Cinnamomum paucifolium (China, leaf oil, 68-90% safrole)
Cinnamomum petrophilum (China, leaf oil, 97% safrole)
Cinnamomum rigidissum (China, wood oil, high % safrole)
Cinnamomum verum ("Ceylon Cinnamon") (origin and % unknown)
Curuma amada (steam-dist rhizome oil, 9.3%
safrole)
Doryphora aromatica (bark oil, % unknown)
Doryphora sassafras (leaf oil, % unknown)
Eremophila longifolia (leaf oil, % unknown)
Hamamelis virginiana (0.5% of essential oil)(Witch Hazel)
Illicium parviflorum Michx (origin unknown, 90% safrole)
Illicium religiosum (illiciacea) (leaf oil, % unknown)
Illicium verum (Star Anise... disputed)
Juniper virginiana (leaf oil, 11% safrole, 6%
isosafrole)
Magnolia salicifolia (magnoliaceae) (origin and % unknown)
Myristica fragrans (volatile seed oil, 0.2-0.6%
safrole)
Nemuaron humboldtii (bark oil, % unknown)
Ocimum basilicum (labiatae) (leaf juice, trace, % unknown)
Ocotea cymbarum (wood oil, 84-93% safrole)
Ocotea pretiosa (S America and % unknown)
Piper auritum (Central America: leaf oil, 70%
safrole)
Piper callosum (Brazil: leaf oil, 70% safrole)
Piper hispidinervium (Brazil: leaf oil, 81-88% safrole)
Piper nigrum (black pepper, trace, % unknown)
Sassafras albidum (wood oil, 80-85% safrole)
Theobroma cacao (origin and % unknown)
Umbellularia californica (leaf oil, % unknown)(Calif
Sassafras)
Zieria smithii (steam-distilled leaf oil, %
unknown)