Plant	Scientific Name	Poisonous Parts
Amaryllis	Amaryllidaceae	Bulbs
American Yew	Taxus canadensis	Needles, seeds
Azalea	Rhododendron occidentale	Leaves
Balsam pear	Memordica charantia	Seeds, outer rind of fruit
Baneberry	Actaia spp.	Berries, roots
Bird of Paradise	Caesalpina gilliesii	Seeds
Black Locust	Robinia pseudoacacia	Bark, sprouts, foliage
Bluegreen algae	Schizophycaea spp.	Some forms toxic
Boxwood	Buxus sempervirens	Leaves, stems
Buckthorn	Rhamnus spp.	Fruit, bark
Buttercup	Ranunculus spp.	Sap, bulbs
Calla lily	Zantedeschia aethiopica	Leaves
Caladium	Caladium spp.	Leaves
Castor bean (castor oil plant)	Ricinus communis	Beans, leaves
Chalice vine	Solandra spp.	All parts
Cherry tree	Prunus spp.	Bark, twigs, leaves, pits
Christmas candle	Pedilanthus tithymaloides	Sap
Clematis	Clematis spp.	All parts
Coral plant	Jatropha multifida	Seeds
Cowslip	Caltha polustris	Seeds
Daffodil	Narcissus spp.	Bulbs
Daphne	Daphne spp.	Berries
Datura	Datura spp.	Berries
Deadly amanita	Amanita muscaria	All parts
Death camas	Zygadenis elegans	All parts
Delphinium	Delphinium spp.	All parts
Dieffenbachia	Dieffenbachia picta	Leaves
Eggplant	Solanaceae spp.	All parts but fruit
Elephant's ear (taro)	Colocasis spp.	Leaves, stem
English ivy	Ilex aquafolium	Berries, leaves
English yew	Taxus baccata	needles, seeds
False henbane	Veratrum woodii	All parts
Fly agaric mushroom (deadly amanita)	Amanita muscaria	All parts
Foxglove	Digitalis purpurea	Leaves, seeds
Golden chain (laburnum)	Laburnum anagyroides	All parts, especially seeds
Hemlock, poison	Conium spp.	All parts, especially roots and seeds
Hemlock, water	Conium spp.	All parts especially roots and seeds
Henbane	Hyocyanamus niger	Seeds
Holly	Ilex spp.	Berries
Horse chestnut	Aesculus spp.	Nuts, twigs
Hyacinth	Hyacinthinus orientalis	Bulbs
Hydrangea	Hydrangea spp.	Flower bud
Indian turnip (jackinthepulpit)	Arisaema triphyllum	All parts
Iris (blue flag)	Iris spp.	Bulbs
Jackinthepulpit	Arisaema triphyllum	All parts
Japanese yew	Taxus cuspidata	Needles, seeds
Java bean (lima bean)	Phaseolus lunatus	Uncooked beans
Jerusalem cherry	Solanum pseudocapsicum	Berries
Jimsonweed (thornapple)	Datura spp.	Leaves, seeds
Juniper	Juniperus virginiana	Needles, stems, berries
Lantana	Lantana spp.	Immature berries
Larkspur	Delphinium spp.	All parts
Laurel	Kalmia, Ledum, Rhododendron spp.	All parts
Lillyofthevalley	Convallaria majalis	All parts, including the water in which they have been kept
Lobelia	Lobelia spp.	All parts
Locoweed	Astragalu mollissimus	All parts
Lords and ladies (cuckoopint)	arum sp.	All parts
Marijuana	Cannabis sativa	Leaves
Mayapple	Podophyllum spp.	All parts, except fruit
Mescal bean	Sophora spp.	Seeds
Mistletoe	Santalales spp.	Berries
Mock orange	Poncirus spp.	Fruit
Monkshood	Aconitum spp.	Leaves, roots
Morning glory	Ipomoea spp.	All parts
Narcissus	Narcissus spp.	Bulbs
Nightshades (all types)	Solanum spp.	Berries, leaves
Oleander	Nerium oleander	Leaves, branches, nectar of blossoms
Philodendron	Philodendron spp.	Leaves, stems
Poison ivy	Toxicodendron radicans	Sap
Poison oak	Toxicodendron quercifolium	Sap
Poinsettia	Euphorobia pulcherrima	Leaves, flowers
Pokeweed (inkberry)	Phytolacca americans	Leaves, roots, immature berries
Potato	Solanum tuberosum	Eyes and new shoots
Privet	Lingustrum volgare	All parts, includling berries
Rhododendron	Rhododendron spp.	All parts
Rhubarb	Rheum rhaponticum	Leaves
Rosary pea (Indian licorice)	Abrus precatorius	Seeds (seed illegally imported to make necklaces and rosaries)
Skunk cabbage	Symplocarpus foetidus	All parts
Snowdrop	Ornithogalum umbellatum	All parts, especially buds
Snowonthemountain (ghostweed)	Euphorbia marginata	All parts
Sweet pea	Lathryus latifolius	Seeds and fruit
Tobacco	Nicotinia spp.	Leaves
Virginia creeper	Pathenocissu quinquefolia	Sap
Western yew	Taxus breviflora	Needles, seeds
Wisteria	Wisteria spp.	All parts
Yam bean	Pachyrhizus erosus	Roots, immature pods

 

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