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Plants That Are Poisonous To Pets

Tips from Delaware Vets
Many species of plants are poisonous. Refer to ASPCA for a more complete list.
Amaryllis
Toxin: alkaloids, mild
Plant part: bulbs
Causes: gastroenteritis
Species affected: dogs and cats
Apple/ almond/ apricot/cherry/ peach/plum trees
Toxin: Cyanide, severe
Plant part: every thing but the fruit
Causes: death
Species affected: dogs, cats and horses
Black Walnut
Toxin: juglone, moderate
Plant part: nuts, bark and wood
Causes: laminitis in horses
Species affected: dogs, cats and horses
Castor bean
Toxin: ricin, severe
Plant part: seeds
Causes: severe diarrhea, death
Species affected: dogs, cats and horses
Chrysanthemum
Toxin: Pyrethrin, mild
Plant part: leaves and stems
Causes: Dermatitis
Species affected: dogs, cats and horses
Daffodils and other flower bulbs
Toxin: alkaloids, mild
Plant part: bulb and leaves
Causes: gastroenteritis
Species affected: dogs, cats and horses
Easter Lily
Toxin: unknown, severe
Plant part: entire
Causes: digestive and kidney problems, death
Species affected: cats
Hydrangea
Toxin: cyanide, severe
Plant part: flower buds
Causes: abdominal pain
Species affected: dogs, cats and horses
Iris
Toxin: Pentacylic terpenoids, mild
Plant part: leaves and rhizomes
Causes: gastroenteritis
Species affected: dogs and cats
Ivy
Toxin: hederasaponins and others, severe
Plant part: leaves and fruit
Causes: difficulty breathing, convulsions, coma
Species affected: dogs, cats and horses
Jasmine
Toxin: glycoside, severe
Plant part: entire
Causes: chronic wasting, death
Species affected: dogs, cats and horses
Jessamine
Toxin: alkaloids, severe
Plant part: entire plant
Effects: difficulty breathing, convulsions and death
Species affected: dogs, cats and horses
Lantana or yellow sage
Toxin: several, severe
Plant part: leaves, berries
Causes: severe gastroenteritis, death
Species affected: dogs, cats and fish
Oleander
Toxin: glycosides, moderate
Plant part: entire
Causes: gastroenteritis
Species affected: dogs, cats and horses
Philodendron
Toxin: calcium oxalate raphides, moderate
Plant part: leaves
Causes: mouth irritation and dermatitis
Species affected: dogs and cats
Poinsettia
Toxin: unknown, mild
Plant part: sap in leaves and stems
Causes: rash and nausea
Species affected: dogs and cats
Pothos
Toxin: calcium oxalate raphides, mild
Plant part: whole plant
Causes: dermatitis and diarrhea
Species affected: dogs and cats
Rhododendron, azalea
Toxin: grayanotoxin, severe
Plant part: all
Causes: internal hemorrhaging, death
Species affected: dogs, cats and horses
Sweet pea
Toxin: beta-aminoproprionitrile, severe
Plant part: entire plant
Causes: paralysis, convulsions, death
Species affected: dogs, cats and horses
Yew
Toxin: taxine, an alkaloid, severe
Plant part: entire plant
Effects: death
Species affected: dogs, cats and horses
Photos and lists of poisonous plants





Information about poisonous plants