An official website of the United States government.
| Chemical Name | Dosage | Reference |
|---|---|---|
| TOCOPHEROL | not available | Duke, 1992 * |
| TYLOPHORINE | not available | Duke, 1992 * |
| URSOLIC-ACID | not available | Duke, 1992 * |
| WITHANOLIDE | not available | Duke, 1992 * |
| ZINC | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Holarrhena pubescens | Tellicherry Bark; Zhi Xie Mu; Conessi; Kurchi | 2 | 656, 400 |
| Hordeum vulgare | Barley; Barleygrass | 8 | 67, 440 |
| Houttuynia cordata | Fishwort; Dokudami; Yu Xing Cao | 6 | 14, 136 |
| Humulus lupulus | Hops | 11 | 10, 328.800000071526 |
| Hydrangea arborescens | Smooth Hydrangea; Hydrangea | 6 | 3, 248.2000000476837 |
| Hydrangea paniculata | Peegee | 1 | 41, 000 |
| Hydrastis canadensis | Goldenseal | 5 | 3, 624.5 |
| Hylocereus guatemalensis | Guatemala Cereus; Nopalito De Guatemala | 1 | 1, 030 |
| Hylocereus undatus | Night-Blooming Cereus; Nopalito De Noche; Strawberry Pear; Belle-of-the-Night; Queen-of-the-Night | 1 | 2, 575 |
| Hyoscyamus niger | Henbane | 5 | 224, 720 |
| Hypericum perforatum | Common St. Johnswort; Hypericum; Klamath Weed; St. John's-wort; Goatweed | 5 | 168, 007.5 |
| Hyptis capitata | Knobweed | 1 | 0 |
| Hyptis suaveolens | Wild Hops | 1 | 390 |
| Hyssopus officinalis | Hyssop | 4 | 10, 434.10000000149 |
| Ilex paraguariensis | Mate; Paraguay Tea; South American Holly | 2 | 0 |
| Illicium verum | Star Anise; Chinese Star Anise; Chinesischer Sternanis (Ger.); Sternanis (Ger.); anis de China (Sp.); anis estrellado (Sp.) | 2 | 31, 320 |
| Inga edulis | Guaba; Icecream Bean | 1 | 710 |
| Inula helenium | Elecampane | 6 | 7, 524.900000095367 |
| Ipomoea aquatica | Swamp Cabbage; Water Spinach | 5 | 24, 802 |
| Ipomoea batatas | Sweet Potato | 6 | 10, 976 |