An official website of the United States government.
| Chemical Name | Dosage | Reference |
|---|---|---|
| PSORALEN | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Aegle marmelos | Bael de India; Bael fruit | 1 | 0 |
| Angelica archangelica | Garden Angelica; Angelica; Wild Parsnip | 1 | 1, 650 |
| Angelica dahurica | Bai Zhi | 1 | 0 |
| Apium graveolens | Celery | 1 | 0.15000000596046448 |
| Coriandrum sativum | Coriander; Chinese Parsley; Cilantro | 1 | 0 |
| Daucus carota | Carrot | 1 | 1.100000023841858 |
| Dictamnus albus | Akgiritotu; Burning Bush; Dittany; Gas Plant; Gazelotu | 1 | 0 |
| Ficus carica | Fig; Figuier Commun (Fr.); Echte Feige (Ger.); Feigenbaum (Ger.); Fico (Ital.); Figueira (Port.); Higo (Sp.); Higuera Comun (Sp.) | 1 | 80, 720 |
| Foeniculum vulgare | Fennel | 1 | 2 |
| Glehnia littoralis | Bei Sha Shen | 1 | 0 |
| Levisticum officinale | Lovage | 1 | 3 |
| Limonia acidissima | Elephant Apple; Manzana De Elefante; Wood-Apple | 1 | 0 |
| Pastinaca sativa | Parsnip | 1 | 10.5 |
| Petroselinum crispum | Parsley | 1 | 43 |
| Psoralea corylifolia | Babchi; Black Dot; Malaya Tea | 1 | 44, 910 |
| Ruta graveolens | Rue | 1 | 0 |
| Zanthoxylum americanum | Northern Prickly Ash | 1 | 15 |