| Amaryllis
|
Bulbs |
Hydrangea |
Flower bud |
| Azalea |
Leaves |
Indian Turnip
(Jack-in- the- pulpit) |
All parts |
| Balsam pear |
Seeds, outer rind of fruit |
Iris (Blue Flag) |
Bulbs |
| Baneberry |
Berries, root |
Java Bean (Lima Bean) |
Uncooked bean |
| Bird of Paradise |
Seeds |
Jerusalem Cherry |
Berries |
| Black locust |
Bark, sprouts, foliage |
Jimsonweed |
Leaves, seeds |
| Blue or green algae |
Some forms are toxic |
Juniper (J. Virginiana) |
Needles, stems, berries |
| Boxwood |
Leaves, stems |
Lantana |
Immature berries |
| Buckthorn |
Fruit, bark |
Larkspur |
All parts |
| Buttercup |
Sap, bulbs |
Laurel |
All parts |
| Calla lily |
Leaves |
Lily of the Valley |
All parts, including the water in which they have been kept |
| Caladium |
Leaves |
Lobella |
All parts |
| Castor Bean
(castor oil) |
Beans, leaves |
Locoweed |
All parts |
| Challis Vine |
All parts |
Lords and Ladies (cuckoopint) |
All parts |
| Cherry Tree |
Bark, twigs, leaves, pits |
Marijuana |
Leaves |
| Christmas Candle |
Sap |
Mayapple |
All parts, except fruit |
| Coral Plant |
Seeds |
Mescal Bean |
Seeds |
| Daffodil |
Bulbs |
Mistletoe |
Berries |
| Daphne |
Berries |
Mock Orange |
Fruit |
| Datura |
Berries |
Monkshood |
Leaves, roots |
| Deadly Amanita |
All parts |
Morning Glory |
All parts |
| Death Camas |
All parts |
Narcissus |
Bulbs |
| Delphinium |
All parts |
Nightshades (all types) |
Berries, leaves |
| Deiffenbachia (dumbcane) |
Leaves |
Oak |
Acorns, foliage |
| Eggplant |
All parts but fruit |
Oleander |
Leaves, branches, nectar of blossoms |
| Elephant's Ear (Taro) |
Leaves, Stem |
Philodendron |
Leaves, stem |
| English Ivy |
Berries, leaves |
Poison Ivy |
Sap |
| False Henbane |
All parts |
Poison Oak |
Sap |
| Foxglove |
Leaves, seeds |
Poinsettia |
Leaves, flowers |
| Golden Chain (Labumum) |
All parts, especially seeds |
Pikeweed |
Leaves, roots, immature berries |
| Hemlock, Poison |
All parts, especially roots and seeds |
Potato |
Eyes and new shoots |
| Hemlock, Water |
All parts, especially roots and seeds |
Privet |
All parts, including berries |
| Henbane |
Seeds |
Rhododendron |
All parts |
| Holly |
Berries |
Rhubarb |
Leaves |
| Horse Chestnut |
Nuts, twigs |
Sweet Pea |
Seeds, fruit |
| Hyacinth |
Bulbs |
Tobacco |
Leaves |
| Rosary Peas |
Seeds (imported to make necklaces and rosaries) |
Virginia Creeper |
Sap |
| Skunk Cabbage |
All parts |
Wisteria |
All parts |
| Snowdrop |
All parts, especially buds |
Yam Bean |
Roots, immature pods |
| Snow on the Mountain (Ghostweed) |
All parts |
Yew (American, English, Japanese) |
Needles, seeds |