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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 |
|---|---|---|---|
| Hedeoma pulegioides | American Pennyroyal | 1 | 10, 000 |
| Heimia salicifolia | Sinicuichi | 1 | 0 |
| Helianthus annuus | Sunflower; Girasol | 7 | 42, 482 |
| Helianthus tuberosus | Jerusalem Artichoke | 1 | 1, 811 |
| Helichrysum angustifolium | Everlasting; Immortelle | 3 | 0 |
| Heliotropium indicus | Indian Heliotrope | 1 | 0 |
| Hemidesmus indicus | Indian Sarsaparilla | 2 | 0 |
| Hibiscus sabdariffa | Roselle; Indian Sorrel; Jamaica Sorrel; Kharkadi; Red Sorrel; Sorrel; Malventee (Ger.); Rosella (Ger.); Acedera de Guinea (Sp.); Rosa de Jamaica (Sp.); Sereni (Sp.) | 4 | 16, 390 |
| Hibiscus syriacus | Rose Of Sharon; Shrub Althaea; Hachisu (Jap.); Mukuge (Jap.) | 1 | 0 |
| Hippophae rhamnoides | Sallow Thorn; Sea Buckthorn; Yellow Spine | 1 | 2, 910 |
| Holarrhena pubescens | Tellicherry Bark; Zhi Xie Mu; Conessi; Kurchi | 2 | 0 |
| Hordeum vulgare | Barley; Barleygrass | 7 | 7, 960 |
| Houttuynia cordata | Fishwort; Dokudami; Yu Xing Cao | 2 | 0 |
| Humulus lupulus | Hops | 6 | 0 |
| Hyacinthus orientalis | Hyacinth | 1 | 9.199999809265137 |
| Hydrangea arborescens | Smooth Hydrangea; Hydrangea | 1 | 0 |
| Hydrangea paniculata | Peegee | 1 | 0 |
| Hylocereus undatus | Night-Blooming Cereus; Nopalito De Noche; Strawberry Pear; Belle-of-the-Night; Queen-of-the-Night | 1 | 0 |
| Hypericum perforatum | Common St. Johnswort; Hypericum; Klamath Weed; St. John's-wort; Goatweed | 5 | 10, 000 |
| Hyssopus officinalis | Hyssop | 7 | 127, 135 |