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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 |
|---|---|---|---|
| Lablab purpureus | Bonavist Bean; Hyacinth Bean; Lablab Bean | 1 | 21, 765 |
| Lactuca sativa | Lettuce | 2 | 1, 500 |
| Lactuca scariola | Prickly Lettuce | 1 | 0 |
| Lactuca virosa | Bitter Lettuce | 1 | 0 |
| Lagenaria siceraria | Calabash Gourd; White-Flowered Gourd | 1 | 1, 350 |
| Lantana camara | Lantana; Wild Sage | 2 | 0 |
| Laurus nobilis | Bayleaf; Sweet Bay; Grecian Laurel; Bay Laurel; Laurel; Bay | 8 | 147, 120 |
| Lavandula angustifolia | English Lavender | 2 | 12, 000 |
| Lavandula latifolia | Aspic; Broad-Leaved Lavender; Spike Lavender | 2 | 21, 054 |
| Lavandula x intermedia | Dutch Lavender; Lavandin | 2 | 10, 000 |
| Lawsonia inermis | Henna; Mignonette; Jamaica-Mignonette; Mignonette Tree | 3 | 0 |
| Lens culinaris | Lentil | 1 | 2, 826 |
| Lentinus edodes | Shiitake | 1 | 0 |
| Leonurus cardiaca | Motherwort | 1 | 0 |
| Lepidium meyenii | Maca; Peruvian Ginseng | 2 | 980 |
| Lepidium sativum | Garden Cress | 1 | 0 |
| Leptospermum scoparium | Manuka; Broom Teatree | 1 | 0 |
| Levisticum officinale | Lovage | 6 | 1, 535 |
| Ligustrum japonicum | Japanese Privet; Ligustri Fructus | 3 | 0 |
| Ligustrum lucidum | Chinese Privet; Glossy Privet; Ligustri Fructus; Privet; White Waxtree | 1 | 0 |