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| Chemical Name | Dosage | Reference |
|---|---|---|
| YATRORICINE | not available | Duke, 1992 * |
| ZYGOPHYLLIN | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Sideritis pauli | El Molinillo Sideritis | 1 | 65 |
| Sideritis scardica | Balkan Sideritis | 1 | 370 |
| Silybum marianum | Milk Thistle; Lady's Thistle | 5 | 500, 000 |
| Simaba multiflora | Cajurana | 1 | 0 |
| Simarouba glauca | Simaruba Bark | 1 | 388, 400 |
| Sinapis alba | White Mustard | 1 | 65, 356 |
| Skimmia arborescens | Skimmia | 3 | 90, 000 |
| Smilax china | China Root | 1 | 0 |
| Solanum dulcamara | Bitter Nightshade; Bittersweet | 1 | 0 |
| Solanum melongena | Aubergine; Eggplant | 7 | 4, 286 |
| Solanum nigrum | Black Nightshade | 1 | 106, 855 |
| Solanum torvum | Susumba; Wild Eggplant | 2 | 0 |
| Solanum tuberosum | Potato | 13 | 8, 458 |
| Solidago gigantea | Early Goldenrod | 6 | 23, 111 |
| Solidago virgaurea | European Goldenrod; Woundwort | 4 | 0 |
| Sonchus oleraceus | Cerraja; Sow Thistle | 1 | 0 |
| Sophora japonica | Japanese Pagoda Tree | 5 | 26, 980 |
| Sorbus aucubaria | Rowan Berry | 7 | 0 |
| Spartium junceum | Genet; Spanish Broom; Weaver's Broom | 2 | 0 |
| Spinacia oleracea | Spinach | 7 | 1, 126 |