- Acokanthera, fruit and flowers
- Aconite/Monkshood, all parts
- Anemone, flowers
- Amaryllis A. Belladonna, bulbs
- Angel Trumpet Tree Datura arboreta, flowers and seeds
- Apple Seeds Prunus varieties
- Apricot Seeds Prunus varieties
- Atropa Belladonna, all parts especially black berries
- Autum Crocus, bulbs
- Azaleas, Rhododendron, all parts
- Baneberry, Doll's eye, red or white berries, roots and foliage
- Beach Pea Lathyrus maritimus
- Betel Nut Palm, all parts
- Bittersweet Solanum celastrus, dulcamera, berries
- Black Locust, bark, sprouts, and foliage
- Bleeding Heart Dutchmam's Breeches Foliage and roots
- Bluebonnets Lupinus, all parts
- Bottlebrush, flowers
- Boxwood Buxus sempervirens, all parts
- Buckeye Horsechestnuts, sprouts and nuts
- Buttercup, all parts
- Caladium, all parts
- Cala Lilly, all parts
- Carolina Jasmine, flowers, leaves, and sap
- Casava Euphorbicacea roots
- Castor Bean Ricinus communis, seeds are fatal
- Cherries, (wild and cultivated), twigs, and foliage are fatal
- Cherry Laurel Prunus varieties
- China Berry Tree, berries are poisonous
- Christmas Berry Toyo, berries are poisonous
- Christmas Rose Hellaborous niger, all parts esp leaves
- Columbine Aguilega, all parts
- Common Privet, black or blue wax coated berries and leaves
- Crocus, all parts
- Croton Euphorbiaceaoutdoor plants are dangerous
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- Daphne, the berries are fatal
- Daffodil Narcissus, bulbs may be fatal
- Death-Camas Sygadenus veneous, all parts
- Deadly Nightshade Solanum nigrum, all parts
- Delphinium, Larkspur annual, all parts
- Destroying Angel Amanita phalloides,Death Cap, all parts
- Dieffenbachia, all parts
- Dogwood, fruit slightly poisonous
- Elderberry, leaves shoots and bark
- Elephant Ears, all parts
- English Ivy Hedera helix, berries
- Euphorbia, Crown of thorns, leaves and flowers
- False-Heliebore Veratrum viride, all parts
- Foxglove Digitalis purpurea, all parts
- Fly Agaric, fly amanita mushroom, all parts
- Four O'Clock, all parts
- Gelsemium Croolina jessamine, all parts
- Golden Chain, seeds and pods
- Heliebore Ranunculaccea, all parts
- Hemlock Roots, all parts
- Henbane, all parts
- Holly llex aquifolium, all parts
- Horse Chestnuts, all parts
- Horsetail Reed, all parts
- Hyacinth Bulb
- Hydrangea, all parts
- Impatients, all parts
- Iris, underground stems
- Ivy, all parts
- Jack-In-The-Pulpit Arisaema triphylla, roots
- Jasmine- Yellow, all parts
- Jatropha, seeds and oil
- Jerusalem Cherry Solanum pseudocapiscum fruits and leaves
- Jasmine Gelsemium semprevirens, berries
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- Jimsom Weed Datura stramomium, all parts
- Lambkill Kalmia angustifolia, leaves
- Lantana Camara, green berries
- Larkspur
- Laurels Primus varieties, all parts
- Lily of the valley Convallaria majalis, all parts
- Lobelia, all parts
- Locoweed, all parts
- Lupine, seeds
- Machineel, all parts
- May Apple, all parts
- Mescal Peyote, all parts
- Milkweed, all parts
- Mistletoe, berries are fatal
- Moccasin Flower Cypripedium spectabiles, all parts
- Mock Orange Primus carolinian, all parts
- Monkshood Aconitum ranunculacea, Foliage and fleshy roots
- Moonseed, berries
- Morning Glories, all parts
- Mushrooms and Toadstools, wild types
- Nicotiana, wild and cultivated leaves
- Oaks, foliage and acorns
- Oleander Nerium oleander, all parts
- Pear Seeds
- Peony Paeonia, all parts
- Periwinkle, all parts
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- Philodendron, leaves, sap
- Pinks (Sweet William), all parts
- Pokeweed Phytolacca, roots
- Poinsetta, Leaves
- Poison Hemlock, all parts
- Poison Ivy Rhus radicans, all parts
- Posion Oak Rhus diversiloba, all parts
- Poppy, all except California Poppy
- Potato, sprouts and foliage
- Ranunculus, all parts
- Redwood, all parts
- Rhododendron, all parts
- Rhubarb Rheum rhaponticum, all parts
- Rosary Pea, seeds
- Rosemary,leaves of certain varieties
- Sage, leaves of certain varietiese
- Scotch Broom Cytisus scoparious, seeds
- Senecio, all parts
- Skunk Cabbage, roots
- Snapdragon, all parts
- Squirrel Corn Dicentra canaensis,all parts
- Star of Bethlehem, all parts
- Stranomium, all parts
- Sweet Peas, stems
- Tansy, all parts
- Taro, stems and leaves
- Tiger Lily Lilium tigrinum, all parts
- Toadstools
- Tobacco Plants, all parts
- Tulip Bulbs
- Trumpet VIne, all parts
- Venus Flytrap, all parts
- Water Hemlock Cicuta maculata, all parts
- Wild Black Cherry, withered leaves
- Wisteria, seeds and pods
- Yews, foliage and berries
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