Poisonous plants

A

  • Aloe
  • Amaryllis
  • Andromeda Japonica
  • Asian Lily (Liliaceae)
  • Asparagus Fern
  • Australian Nut
  • Autumn Crocus
  • Avocado
  • Azalea

B

  • Bird of Paradise
  • American Bittersweet
  • European Bittersweet
  • Branching Ivy
  • Buckeye
  • Buddist Pine

C

  • Caladium
  • Calla Lily
  • Castor Bean
  • Ceriman (aka Cutleaf Philodendron)
  • Charming
  • Diffenbachia
  • Chinaberry Tree
  • Chinese Evergreen
  • Christmas Rose
  • Clematis
  • Cordatum
  • Corn Plant (aka Cornstalk Plant)
  • Cutleaf Philodendron (aka Ceriman)
  • Cycads
  • Cyclamen

D

  • Daffodil
  • Day Lily
  • Devil’s Ivy
  • Dumb Cane
  • Deadly Nightshade

E

  • Easter Lily
  • Elephant Ears
  • Emerald Feather (aka Emerald Fern)
  • English Ivy

F

  • Fiddle-Leaf Philodendron
  • Flamingo Plant
  • Florida Beauty
  • Foxglove
  • Fruit Salad Plant

G

  • Glacier Ivy
  • Gladiolas
  • Glory Lily
  • Gold Dieffenbachia
  • Gold Dust Dracaena
  • Golden Pothos
  • Green Gold Nephthysis

H

  • Hahn’s self branching English Ivy
  • Heartleaf Philodendron
  • Heavenly Bamboo
  • Holly
  • Horsehead Philodendron
  • Hurricane Plant
  • Hyacinth
  • Hydrangea

I

  • Iris

J

  • Jade Plant
  • Japanese Show Lily
  • Japanese Yew (aka Yew)
  • Jerusalem Cherry

K

  • Kalanchoe

L

  • Lace Fern
  • Lacy Tree
  • Lily of the Valley

M

  • Macadamia Nut
  • Madagascar Dragon Tree
  • Marble Queen
  • Marijuana
  • Mauna Loa Peace Lily (aka Peace Lily)
  • Mexican Breadfruit
  • Mistletoe “American”
  • Morning Glory
  • Mother-in-Law

N

  • Narcissus
  • Needlepoint Ivy
  • Nephthytis
  • Nightshade

O

  • Oleander
  • Onion
  • Orange Day Lily

P

  • Panda
  • Peace Lily (aka Mauna Loa Peace Lily)
  • Philodendron Pertusum
  • Plumosa Fern
  • Precatory Bean

Q

  • Queensland Nut

R

  • Red Emerald
  • Red Lily
  • Red-Margined Dracaena (aka Straight-Margined Dracaena)
  • Red Princess
  • Rhododendron
  • Ribbon Plant (Dracaena sanderiana)
  • Rubrum Lily

S

  • Saddle Leaf Philodendron
  • Sago Palm
  • Satin Pothos
  • Schefflera
  • Spotted Dumb Cane
  • Stargazer Lily
  • Striped Dracaena
  • Sweetheart Ivy
  • Swiss Cheese Plant

T

  • Taro Vine
  • Tiger Lily
  • Tomato Plant
  • Tree Philodendron
  • Tropic Snow Dumbcane
  • Tulip

V

  • Variable Dieffenbachia
  • Variegated Philodendron

W

  • Warneckei Dracaena
  • Wood Lily

Y

  • Yew (aka Japanese Yew)
  • Yucca

Source: The ASPCA Animal Poison Control Center