What's in your backyard? These 13 plants could hurt your pets

HOUSTON (KTRK) -- There are hundreds of plants that are poisonous to cats and dogs and also dozens of plants that will cause discomfort.

Azaleas, lillies, tulips, and aloe vera are just some of the popular plants commonly found in gardens and homes, that could harm your pets.

Here is a list of common plants that could be a danger to your pets, according to the ASPCA.

Aloe

Scientific Name: Aloe vera

Family: Liliaceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Saponins, anthraquinones

Clinical Signs: Vomiting (not horses), lethargy, diarrhea. The gel is considered edible.

American Holly

Additional Common Names: English Holly, European Holly, Oregon Holly, Inkberry, Winterberry

Scientific Name: Ilex opaca

Family: Aquifoliaceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: saponins

Clinical Signs: Vomiting (not in horses), diarrhea and depression.

American Yew

Additional Common Names: Canada Yew, Canadian Yew

Scientific Name: Taxus canadensus

Family: Taxaceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Taxine A and B, Volatile oil

Clinical Signs: Tremors, difficulty breathing, vomiting, seizures (dogs), sudden death from acute heart failure.

Arum Lily

Additional Common Names: Calla Lily, Pig Lily, White Arum, Trumpet Lily, Florist's Calla, Garden Calla

Scientific Name: Zantedeschia aethiopica

Family: Araceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Insoluble calcium oxalates

Clinical Signs: Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting (not horses), difficulty swallowing

Azalea

Additional Common Names: Rosebay, Rhododendron

Scientific Name: Rhododendron spp

Family: Ericaceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Grayantoxin

Clinical Signs: Vomiting (not in horses), diarrhea, weakness, cardiac failure

Boxwood

Scientific Name: Buxus spp.

Family: Buxaceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Alkaloids

Clinical Signs: Dogs and cats: vomiting, diarrhea; Horses: colic, diarrhea, respiratory failure, seizures

Daffodil

Additional Common Names: Narcissus, Jonquil, Paper White

Scientific Name: Narcissus spp

Family: Amaryllidaceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Lycorine and other alkaloids

Clinical Signs: Vomiting, salvation, diarrhea; large ingestions cause convulsions, low blood pressure, tremors and cardiac arrhythmias. Bulbs are the most poisonous part.

Oleander

Additional Common Names: Rose-Bay

Scientific Name: Nerium oleander

Family: Apocynaceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Cardiac glycosides

Clinical Signs: Drooling, abdominal pain, diarrhea, colic, depression, death

Sago Palm

Additional Common Names: Coontie Palm, Cardboard Palm, cycads and zamias

Scientific Name: Cycas revoluta, zamia species

Family: Cycadaceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Cycasin

Clinical Signs: Vomiting, melena, icterus, increased thirst, hemorrhagic gastroenteritis, bruising, coagulopathy, liver damage, liver failure, death.

Tropic Snow

Additional Common Names: Charming Dieffenbachia, Giant Dumb Cane, Dumbcane, Exotica, Exotica Perfection, Dieffenbachia

Scientific Name: Dieffenbachia amoena

Family: Araceae

Toxicity: Toxic to Dogs, Toxic to Cats

Toxic Principles: Insoluble calcium oxalates, proteolytic enzyme

Clinical Signs: Oral irritation, intense burning and irritation of mouth , tongue and lips, excessive drooling, vomiting, difficulty swallowing

Caladium

Additional Common Names: Malanga, Elephant's Ears, Stoplight, Seagull, Mother-in-law Plant, Pink Cloud, Texas Wonder, Angel-Wings, Exposition, Candidum, Fancy-leaved Caladium

Scientific Name: Caladium hortulanum

Family: Araceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Insoluble calcium oxalates

Clinical Signs: Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting (not horses), difficulty swallowing

Tulip

Scientific Name: Tulipa spp.

Family: Liliaceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Tulipalin A and B

Clinical Signs: Vomiting, depression, diarrhea, hypersalivation. Highest concentration of toxin in bulb.

Cordatum

Additional Common Names: Fiddle-Leaf, Horsehead Philodendron, Heartleaf Philodendron, Panda Plant, Split Leaf Philodendron, Fruit Salad Plant, Red Emerald, Red Princess, Saddle Leaf

Scientific Name: Philodendron oxycardium

Family: Araceae

Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses

Toxic Principles: Insoluble calcium oxalates

Clinical Signs: Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting (not horses), difficulty swallowing

For more information on plants that could harm your pets, go to aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants.

For information on what to do if your pet is poisoned, click here, aspca.org/pet-care/animal-poison-control