Harmful Plants Plant name
Amaryllis
American yew
Azalea
Balsam pear
Baneberry
Bird of paradise
Black locust
Blue-green algae
Boxwood
Buckthorn
Buttercup
Calla lily
Caladium
Castor bean (castor oil plant)
Chalice vine
Cherry tree
Christmas candle
Clematis
Coral plant
Cowslip
Daffodil
Daphne
Amryllidaceae
Taxus Canadensis
Rhododendron occidentale
Memordica charantia
Actaia spp
Caesalpina gilliesii
Robinia pseudo acacia
Schizophyceae
Buxus sempervirens
Rhamnus
Ranunculus spp
Zantedeschia aethiopica
Caladium spp
Ricinus communis
Solandra spp
Prunus spp
Pedilanthus tithymaloides
Clematis spp
Jatropha multifida
Calta polustris
Narcissus spp
Daphne spp
Bulbs
Needles, seeds
Leaves
Seeds, outer rind of fruit
Berries, roots
Seeds
Bark, sprouts, foliage
Some forms toxic
Leaves, stems
Fruit, bark
Sap, bulbs
Leaves
Leaves
Beans, leaves
All parts
Bark, twigs, leaves, pits
Sap
All parts
Seeds
All parts
Bulbs
Berries
Datura
Deadly amanita
Death camas
Delphinium
Dieffenbachia
Eggplant
Elephant’s ear (taro)
English ivy
English yew
False henbane
Fly agaric mushroom (deadly amanita)
Foxglove
Golden chain
(laburnum)
Hemlock, poison
Datura spp
Amanita muscaria
Zygadenis elegans
Delphinium spp
Dieffenbachia picta
Solanaceae spp
Colocasis spp
Ilex aqua folium
Taxus baccata
Veratrum woodi
Amanita muscaria
Digitalis purpurea
Laburnum anagyroides
Conium spp
Berries
All parts
All parts
All parts
Leaves
All parts but fruit
Leaves stem
Berries, leaves
Needles, seed
All parts
All parts
Leaves, seed
All parts
All parts especially roots and seeds
Hemlock, water
Henbane
Holly
Horse chestnut
Hyacinth
Hydrangea
Indian turnip (jack-in –the-pulpit)
Iris (blue flag)
Japanese yew
Java bean (lima bean)
Jerusalem cherry
Jimsonweed (thorn apple)
Juniper
Lantana
Larkspur
Conium spp
Hyocyanamus niger
Ilex spp
Aesculus spp
Hyacinthinus orientalis
Hydrangea spp
Arisaema triphyllum
Iris spp
Taxus cusidata
Phaseolus lunatus
Solanum pseudocapsicum
Datura spp
Juniperus virginiana
Lantana spp
Delphinium spp
All parts especially root and seeds
Seeds
Berries
Nuts, twigs
Bulbs
Flower bud
All parts
Bulbs
Needles and seeds
Uncooked beans
Berries
Leaves, seeds
Needles, stems, berries
Immature berries
All parts
Laurel
Lily of the valley
Lobelia
Locoweed
Lords and ladies (cuckoopint)
Marijuana
Mayapple
Mescal bean
Mistletoe
Mock orange
Monkshood
Morning glory
Narcissus
Night shades (all types)
Oleander
Philodendron
Poison ivy
Poison oak
Poinsettia
Pokeweed (inkberry)
Potato
Privet
Rhododendron
Rhubarb
Rosary pea (Indian licorice)
Kalmia, ledum, rhododendron spp
Convallaria majalis
Lobelia spp
Astragalus mollissimus
Arum sp
Cannabis sativa
Podophyllum spp
Sophora spp
Santalales spp
Poncirus spp
Aconitum spp
Ipomoea spp
Narcissus spp
Solanum spp
Nerium oleander
Philodendron spp
Toxdicodendron radicans
Toxicodendron quercifolium
Euphorbia pulcherrima
Phytolacca americans
Solanum tuberosum
Ligustrum volgare
Rhododendron spp
Rheum rhaponticum
Abrus precatorius
All parts
All parts including the water in which they have been kept
All parts
All parts
All parts
Leaves
All parts except fruit
Seeds
Berries
Fruit
Leaves, roots
All parts
Bulbs
Berries leaves
Leaves, branches, nectar of blossoms
Leaves stem
Sap
Sap
Leaves, flowers
Leaves, roots, immature berries
Eyes and new shoots
All parts, including berries
All parts
Leaves
Seeds (seeds illegally imported to make necklaces, rosaries)
Skunk cabbage
Snow drop
Snow-on-the-mountain (ghost weed)
Sweet pea
Tobacco
Virginia creeper
Symplocarpus foetidus
Ornithogalum umbellatum
Euphorbia marginata
Lathyrus latifolius
Nicotinia spp
Pathenocissus quinquefolia
All parts
All parts, especially buds
All parts
Seeds and fruit
Leaves
Sap |