| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Anastatica hierochuntica | Fruit | -- | -- | * | |
| Armoracia rusticana | Plant | -- | -- | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. | |
| Brassica oleracea var. gemmifera | Plant | -- | -- | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. | |
| Brassica oleracea var. botrytis l. | Leaf | -- | 248.0 | * | |
| Brassica oleracea var. sabellica l. | Leaf | -- | -- | * | |
| Brassica oleracea var. italica | Leaf | -- | 248.0 | * | |
| Brassica oleracea var. botrytis l. | Flower | -- | 1600.0 | * | |
| Brassica oleracea var. capitata l. | Leaf | -- | -- | Jim Duke's personal files. | |
| Capparis spinosa | Plant | -- | -- | * |