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String of Pearls
Senecio rowleyanus
String of Pearls (Senecio rowleyanus and related Senecio spp.) is a distinctive succulent houseplant with bead-like leaves that is moderately toxic to cats. It contains pyrrolizidine alkaloids (PAs) — the same liver-damaging compounds found in Ragwort — along with other irritant compounds. All parts of the plant are toxic.
Important Notes
Toxic compounds: pyrrolizidine alkaloids and irritant compounds throughout the plant; the round bead-like leaves may attract cats
Mechanism: PAs are metabolised to reactive pyrroles in the liver, causing hepatocellular necrosis; cumulative damage can lead to liver failure
Symptoms: vomiting, diarrhea, drooling, lethargy; chronic exposure may cause weight loss and jaundice as liver damage accumulates
The dangling bead-like appearance is particularly appealing to cats — relocate to spaces cats cannot access
Seek veterinary care if significant ingestion occurs
Potentially Toxic Parts
Sap
Leaf
Possible Symptoms Reported in Cats
Vomiting and diarrhea
Gastrointestinal · Not explicitly specified in the sources.
Drooling
Gastrointestinal · Not explicitly specified in the sources.
Lethargy
Neurological · Not explicitly specified in the sources.
Irritation of the skin and eyes
Dermal · Not explicitly specified (likely immediate or shortly after contact).
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.