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| Chemical Name | Dosage | Reference |
|---|---|---|
| SENKYUNOLIDE-N | 250 pg/ml | Duke, 1992 * |
| TRYPTOPHAN | 250 pg/ml | Duke, 1992 * |
| UMBELLIFERONE | not available | Duke, 1992 * |
| URUSHIOL | not available | Duke, 1992 * |
| XANTHOXYLIN | not available | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Solanum melongena | Aubergine; Eggplant | 3 | 2, 478 |
| Solanum nigrum | Black Nightshade | 1 | 0 |
| Solanum torvum | Susumba; Wild Eggplant | 1 | 0 |
| Solanum tuberosum | Potato | 5 | 3, 790 |
| Solidago gigantea | Early Goldenrod | 1 | 21, 980 |
| Solidago virgaurea | European Goldenrod; Woundwort | 1 | 0 |
| Sonchus oleraceus | Cerraja; Sow Thistle | 1 | 0 |
| Sophora japonica | Japanese Pagoda Tree | 2 | 0 |
| Sophora pachycarpa | Siberian Pachycarpa | 1 | 0 |
| Sophora subprostrata | Shan Dou Gen | 1 | 0 |
| Sorbus aucubaria | Rowan Berry | 2 | 0 |
| Spartium junceum | Genet; Spanish Broom; Weaver's Broom | 2 | 0 |
| Spinacia oleracea | Spinach | 2 | 4, 632 |
| Stachys officinalis | Betony; Wood Betony; Bishop's-Wort; Purple Betony | 2 | 20, 000 |
| Stellaria media | Chickweed; Common Chickweed | 3 | 0 |
| Sterculia urens | Karaya | 1 | 0 |
| Stevia rebaudiana | Ca-A-E; Sweet Leaf of Paraguay; Stevia | 4 | 0 |
| Sweetia panamensis | Billy Webb; Cascara Amarga | 1 | 0 |
| Swertia chirata | Chirata; Chiretta | 1 | 0 |
| Symphytum officinale | Comfrey | 2 | 5, 000 |