| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Thymus vulgaris | Plant | 4.0 | 53.0 | 2.9 | * |
| Armoracia rusticana | Root | 4.0 | 20.0 | 3.5 | * |
| Platycodon grandiflorum | Root | 3.9 | 4.7 | 0.1 | * |
| Tropaeolum majus | Shoot | 3.5 | 25.5 | 0.7 | * |
| Lepidium meyenii | Root | 3.5 | 4.0 | -0.0 | * |
| Theobroma bicolor | Seed | 3.4 | 3.5 | -0.0 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Lycium chinense | Leaf | 3.1 | 30.0 | -0.0 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Carum carvi | Seed | 3.0 | 4.0 | 0.2 | USDA's Ag Handbook 8 and sequelae) |
| Echinacea purpurea | Root | 3.0 | 12.0 | 1.7 | * |
| Cuminum cyminum | Fruit | 3.0 | 4.0 | -0.2 | * |
| Manihot esculenta | Leaf | 3.0 | 15.0 | -0.1 | * |
| Carum carvi | Fruit | 3.0 | 4.0 | -0.2 | * |
| Coriandrum sativum | Fruit | 3.0 | 4.0 | -0.2 | Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980. |
| Colocasia esculenta | Leaf | 3.0 | 35.0 | -0.0 | * |
| Rumex crispus | Root | 3.0 | 10.8 | 1.5 | * |
| Cnidoscolus chayamansa | Leaf | 3.0 | 25.0 | -0.1 | * |
| Chenopodium ambrosioides | Leaf | 3.0 | 19.0 | -0.1 | * |
| Cuminum cyminum | Seed | 3.0 | 4.0 | 0.2 | * |
| Phytolacca americana | Shoot | 3.0 | 39.0 | 2.0 | * |
| Perilla frutescens | Leaf | 3.0 | 23.0 | -0.1 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |