This list contains plants that have been reported as having systemic effects on animals or as having intense effects on the gastrointestinal tract. Any plant material ingested by an animal (as when dogs and cats ingest yard grass) may produce signs of vomiting, depression, or diarrhea. These signs are generally mild and self-limiting and often do not require any treatment.

Please note that the information contained in our plant lists is not meant to be all-inclusive, but rather a compilation of the most frequently encountered 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)
- Cornstalk Plant (aka Corn Plant)
- Cutleaf Philodendron (aka Ceriman)
- Cycads
- Cyclamen

D
- Daffodil
- Day Lily
- Devil’s Ivy
- Dumb Cane
- Deadly Nightshade (See Nightshade)

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

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

G
- Glacier Ivy
- Gladiola
- 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
- 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 Maana 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
- Yesterday, Today, Tomorrow
- Yew (aka Japanese Yew)
- Yucca

Source: ASPCA Website, 2006