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Iris
Iris spp.
Iris (Iris spp.) is a widely cultivated ornamental plant that is mildly to moderately toxic to cats. The rhizomes (underground stems/bulbs) contain the highest concentration of toxic compounds, including irisin, iridoid glycosides, and pentacyclic terpenoids. The leaves and petals carry lower but non-trivial amounts of these irritants.
Important Notes
Toxic compounds: irisin (resinous glycoside), iridoid glycosides, pentacyclic terpenoids; rhizomes most concentrated
Mechanism: irisin and iridoid compounds cause direct GI irritation; skin contact with sap may cause dermatitis
Symptoms: drooling, vomiting, diarrhea, lethargy, abdominal pain; skin or eye contact with sap may cause redness or irritation
Rhizomes are the most hazardous part — risk increases during planting or dividing bulbs
Symptoms are usually mild with leaf nibbling; contact your vet if rhizome ingestion is suspected
Potentially Toxic Parts
Stem
Entire Plant
Leaf
Flower
Bulb
Possible Symptoms Reported in Cats
Vomiting, Nausea, and Diarrhea
Gastrointestinal · Not explicitly specified in the provided text (though general plant toxicity symptoms often appear a
Mouth Ulcers and Oral Irritation
Gastrointestinal · Acute (upon contact/ingestion).
Abdominal Pain
Gastrointestinal · Not explicitly specified.
Skin Irritation (Dermatitis)
Dermal · Not explicitly specified.
Disclaimer: This summary was compiled from multiple sources and is for informational use only. It is not a diagnosis or treatment plan. Toxicity can vary based on the substance, amount, plant part, and individual cat. If you think your cat may have been exposed to a toxic substance, contact a veterinarian right away.