These plants contain a wide variety of poisons and symptoms, may vary from a mild stomach ache, skin rash, swelling of the mouth and throat, to involvement of the heart, kidneys, or other organs. The Poison Center can give you more specific information on these or other plants that can be poisonous and may not be on this list. Many plants do not cause toxicity unless ingested in large amounts!
- Acorn (Oak)
- Ackee Fruit
- Anemone
- Angel Trumpet Tree
- Apricot (Kernels, Leaves)
- Arrowhead
- Autumn Crocus
- Avocado (Leaves)
- Azalea
- Baneberry
- Belladonna
- Betel Nut Palm
- Bird of Paradise
- Bittersweet
- Black Locust
- Bleeding Heart
- Buckeye
- Buttercup
- Caladium
- Calla Lily
- Castor Bean
- Century Plant
- Cherries (Pits)
- Chinaberry
- Choke Berry
- Christmas Rose
- Climbing Nightshade
- Cowbane
- Daffodil
- Daphne
- Deadly Nightshade
- Delphinium
- Desert Potato
- Devil’s Ivy
- Dieffenbachia
- Dumbcane
- Dutchman’s Breeches
- Elderberry
- Elephant Ear
- English Ivy
- Euonymus
- Fava Bean
- Flags (Iris)
- Four O’ Clock
- Foxglove
- Goldenchain
- Holly Berries
- Horsetail Reed
- Hyacinth
- Hydrangea
- Indian Turnip
- Inkberry
- Iris
- Jack-In-the-Pulpit
- Japanese Yew
- Jasmine
- Jequirity Bean
- Jerusalem Cherry
- Jimson Weed Seeds
- Jonquil
- Lantana
- Larkspur
- Ligustrum
- Lily of the Valley
- Lobelia
- Locoweed
- Lucky Nut
- Marsh Marigold
- Mayapple
- Mistletoe Berries
- Monkshood
- Moonseed
- Morning Glory
- Mother-in-Law Plant
- Mountain Laurel
- Mulberries (Green)
- Narcissus
- Nightshade
- Oleander
- Peach (Seeds)
- Pencil Tree
- Peony
- Periwinkle
- Peyote
- Philodendron
- Pigeonberry
- Poinsettia
- Poison Hemlock
- Poison Ivy
- Pokeweed/Pokeberries
- Potato (All green parts)
- Primrose
- Privet
- Ranunculus
- Rhododendron
- Rhubarb Leaves
- Rosary Pea
- Snow Drop
- Sorrel
- Star of Bethlehem
- Swiss Cheese Plant
- Thornapple
- Threadleaf
- Tobacco
- Tomato (All green plants)
- Tulip Bulb
- Virginia Creeper
- Water Hemlock
- Wisteria
- Yellow Jessamine
- Yew Berries