Toxic plants

Bad Plant!

CalVet UPenn toxic plants pages (link)
an excellent source for photos and descriptions of common toxic plants in the Northeast

This list has been compiled from various online sources. All sources carry disclaimer that Just because something is on the poisonous plants list doesn't mean it's fatal, and just because it is absent from the list doesn't mean it is safe! Many cause merely gastric distress, some kill within an hour.

list with photos

Aloe Amaryllis Andromeda Japonica Asparagus Fern Australian Nut Autumn Crocus Avocado	Bird of Paradise American Bittersweet European Bittersweet Branching Ivy Buckeye Buddist Pine
Caladium Calla Lily Castor Bean Ceriman (aka Cutleaf Philodendron) Charming Diffenbachia Chinaberry Tree Chinese Evergreen Christmas Rose Clematis Cordatum Cornstalk Plant (aka Corn Plant) Cutleaf Philodendron (aka Ceriman) Cycads	Day Lily Devil’s Ivy Dumb Cane Deadly Nightshade Elephant Ears Emerald Feather Emerald Fern English Ivy Fiddle-Leaf Philodendron Flamingo Plant Florida Beauty Foxglove Fruit Salad Plant
Glacier Ivy Gladiolas Glory Lily Gold Dieffenbachia Gold Dust Dracaena Golden Pothos Green Gold Nephthysis Hahn’s self branching English Ivy Heartleaf Philodendron Heavenly Bamboo Holly Hops Horsehead Philodendron Hurricane Plant Hydrangea Iris	Japanese Show Lily Japanese Yew Jerusalem Cherry Kalanchoe Lace Fern Lacy Tree Macadamia Nut Madagascar Dragon Tree Marble Queen Marijuana Mauna Loa Peace Lily (aka Peace Lily) Mexican Breadfruit Mistletoe "American" Morning Glory Mother-in-Law

Narcissus Needlepoint Ivy Nephthytis Nightshade	Oleander Onion	Panda Peace Lily Plumosa Fern Precatory Bean
Queensland Nut Red Emerald Red Lily Red Princess Rhododendron Ribbon Plant Rubrum Lily	Sago Palm Satin Pothos Schefflera Spotted Dumb Cane Stargazer Lily Striped Dracaena Sweetheart Ivy Swiss Cheese Plant	Taro Vine Tiger Lily Tomato Plant Tree Philodendron Tropic Snow Dumbcane Tulip

Variegated Philodendron

Warneckei Dracaena
Wood Lily

Yesterday, Today, Tomorrow
Yew (aka Japanese Yew)
Yucca

PetMD list of pet friendly plants

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Human ingestibles that may be dangerous

Human medications that can kill your pet

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Further exposition on some more common or more dangerous plants:

Aloe
Common Name: Aloe
Scientific Name: Aloe vera
Family: Liliaceae
Toxic Principle: saponins
Clinical signs: vomiting, depression, diarrhea, anorexia, tremors, change in urine color.

Amaryllis
Common Name: Amaryllis
Scientific Name: Amaryllis sp.
Family: Amaryllidaceae
Toxic Principle: Lycorine and others
Clinical signs: vomiting, depression, diarrhea, abdominal pain, hypersalivation, anorexia, tremors.

Asian Lily (Liliaceae)
Common Name: Asian Lily (Liliaceae)
Scientific Name: Lilium asiatica
Family: Ericaceae
Toxic Principle: unknown
Clinical signs: vomiting, inappetence, lethargy, kidney failure, and death is possible. Cats are only species known to be affected.

Asparagus Fern
Common Name: Asparagus Fern
Scientific Name: Asparagus sprengeri
Family: Liliaceae
Toxic Principle: not available
Clinical signs: allergic dermatitis with repeated dermal exposure. Berry ingestion could result in gastric upset (vomiting, abdominal pain, or diarrhea.)

Autumn Crocus
Common Name: Autumn Crocus
Scientific Name: Colchicum autumnale
Family: Liliaceae
Toxic Principle: colchicine and other alkaloids
Clinical signs: oral irritation, bloody vomiting, diarrhea, shock, multi-organ damage, bone marrow suppression.

Azalea
Common Name: Azalea
Scientific Name: Rhododendron spp
Family: Ericaceae
Toxic Principle: grayantoxin
Clinical signs: vomiting, diarrhea, hypersalivation, weakness, coma, hypotension, CNS depression, cardiovascular collapse and death.

Cyclamen
Common Name:Cyclamen
Sowbread
Scientific Name: Cyclamen spp
Family: Primulaceae
Toxic Principle: Terpenoid saponins
Clinical signs: Salivation, vomiting, diarrhea
Large ingestions of tubers: heart rhythm abnormalities, seizures, death

Daffodil
Common Name: Daffodil
Scientific Name: Narcissus spp
Family: Amaryllidaceae
Toxic Principle: narcissine, narcipoeitin, lycorineh, other alkaloids.
Clinical signs: severe gastrointestinal disorders, convulsions, shivering, hypotension, dermatitis, muscular tremors, and cardiac arrhythmias.

Day Lily
Common Name: Day Lily
Scientific Name: Hemerocallis spp.
Family: Liliaceae
Toxic Principle: unknown
Clinical signs:
Cats: kidney failure
Cows: Incoordination, paresis, blindness, death

Easter Lily
Common Name: Easter Lily
Scientific Name: Lilium longiflorum
Family: Liliaceae
Toxic Principle: unknown
Clinical signs: vomiting, inappetence, lethargy, kidney failure, and death is possible. Cats are only species known to be affected.

Gladiolas
Common Name: Gladiolas
Scientific Name: Gladiolas species
Family: Iridaceae
Toxic Principle: not available
Clinical signs: vomiting, occasionally with blood, depression, diarrhea, occasionally with blood, hypersalivation, abdominal pain.

Hyacinth
Common Name: Hyacinth
Scientific Name: Hyacinthus oreintalis
Family: Liliaceae
Toxic Principle: possibly narcissus-like alkaloids
Clinical signs: intense vomiting, diarrhea, occassionally with blood, depression and tremors.

Hydrangea
Common Name: Hydrangea
Scientific Name: Hydrangea macrophylla
Family: Saxifragaceae
Toxic Principle: cyanogenic glycoside
Clinical signs: vomiting, depression, anorexia, diarrhea, increase in heartrate, increase in body temperature.

Heavenly Bamboo
Common Name: Heavenly Bamboo
Scientific Name: Nandina domestica
Family: Berberidaceae
Toxic Principle: cyanogenic glycosides
Clinical signs: cyanosis, pale mucous membranes, slow heartrate, vomiting, diarrhea, respiratory congestion, seizures, semi-coma, respiratory failure, death.

Japanese Yew (aka Yew)
Common Name: Japanese Yew (aka Yew)
Scientific Name: Taxus sp.
Family: Taxaceae
Toxic Principle: taxine
Clinical signs: sudden death from acute cardiac failure, early signs- muscular tremors, dyspnea, seizures in dogs.

Lily of the Valley
Common Name: Lily of the Valley
Scientific Name: Convalaria majalis
Family: Liliaceae
Toxic Principle: cardiac glycosides, convallarin, convallatoxin
Clinical signs: ataxia, vomiting, cardiac arrhythmias, death.

Oleander
Common Name: Oleander
Scientific Name: Nerium oleander
Family: Apocynaceae
Toxic Principle: cardiac glycosides, nerioside, oleandroside, oleandrin
Clinical signs: vomiting, diarrhea, cardiac abnormalities, decreased body temperature, death.

Rhododendron
Common Name: Rhododendron
Scientific Name: Rhododendron spp
Family: Ericaceae
Toxic Principle: grayantoxin
Clinical signs: vomiting, diarrhea, hypersalivation, weakness, coma, hypotension, CNS depression, cardiovascular collapse and death.

Yucca
Common Name: Yucca
Scientific Name: Yucca sp
Family: Agavaceae
Toxic Principle: Not available
Clinical signs: vomiting, depression, diarrhea, drooling, seizures.

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Human ingestibles that may be dangerous

Human medications that can kill your pet

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Moosecoons Maine Coon Cats & Kittens in Maryland

Amaryllis Common Name: Amaryllis Scientific Name: Amaryllis sp. Family: Amaryllidaceae Toxic Principle: Lycorine and others Clinical signs: vomiting, depression, diarrhea, abdominal pain, hypersalivation, anorexia, tremors.

Asian Lily (Liliaceae) Common Name: Asian Lily (Liliaceae) Scientific Name: Lilium asiatica Family: Ericaceae Toxic Principle: unknown Clinical signs: vomiting, inappetence, lethargy, kidney failure, and death is possible. Cats are only species known to be affected.

Azalea Common Name: Azalea Scientific Name: Rhododendron spp Family: Ericaceae Toxic Principle: grayantoxin Clinical signs: vomiting, diarrhea, hypersalivation, weakness, coma, hypotension, CNS depression, cardiovascular collapse and death.

Cyclamen Common Name:Cyclamen Sowbread Scientific Name: Cyclamen spp Family: Primulaceae Toxic Principle: Terpenoid saponins Clinical signs: Salivation, vomiting, diarrhea Large ingestions of tubers: heart rhythm abnormalities, seizures, death

Daffodil Common Name: Daffodil Scientific Name: Narcissus spp Family: Amaryllidaceae Toxic Principle: narcissine, narcipoeitin, lycorineh, other alkaloids. Clinical signs: severe gastrointestinal disorders, convulsions, shivering, hypotension, dermatitis, muscular tremors, and cardiac arrhythmias.

Day Lily Common Name: Day Lily Scientific Name: Hemerocallis spp. Family: Liliaceae Toxic Principle: unknown Clinical signs: Cats: kidney failure Cows: Incoordination, paresis, blindness, death

Heavenly Bamboo Common Name: Heavenly Bamboo Scientific Name: Nandina domestica Family: Berberidaceae Toxic Principle: cyanogenic glycosides Clinical signs: cyanosis, pale mucous membranes, slow heartrate, vomiting, diarrhea, respiratory congestion, seizures, semi-coma, respiratory failure, death.

Japanese Yew (aka Yew) Common Name: Japanese Yew (aka Yew) Scientific Name: Taxus sp. Family: Taxaceae Toxic Principle: taxine Clinical signs: sudden death from acute cardiac failure, early signs- muscular tremors, dyspnea, seizures in dogs.

Lily of the Valley Common Name: Lily of the Valley Scientific Name: Convalaria majalis Family: Liliaceae Toxic Principle: cardiac glycosides, convallarin, convallatoxin Clinical signs: ataxia, vomiting, cardiac arrhythmias, death.

Oleander Common Name: Oleander Scientific Name: Nerium oleander Family: Apocynaceae Toxic Principle: cardiac glycosides, nerioside, oleandroside, oleandrin Clinical signs: vomiting, diarrhea, cardiac abnormalities, decreased body temperature, death.

Rhododendron Common Name: Rhododendron Scientific Name: Rhododendron spp Family: Ericaceae Toxic Principle: grayantoxin Clinical signs: vomiting, diarrhea, hypersalivation, weakness, coma, hypotension, CNS depression, cardiovascular collapse and death.

Yucca Common Name: Yucca Scientific Name: Yucca sp Family: Agavaceae Toxic Principle: Not available Clinical signs: vomiting, depression, diarrhea, drooling, seizures.