Dogs
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources

Philodendron bipinnatifidum
The Lacy Tree Philodendron is a popular tropical houseplant known for its large, deeply lobed, glossy green leaves. It contains insoluble calcium oxalate crystals that can cause irritation if ingested or chewed.
Safety status
Dogs
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources
Dogs that chew lacy tree philodendron get an immediate, painful mouthful — the insoluble calcium oxalate crystals stab into the tissue of the mouth and tongue on contact. The reaction is dramatic, but most dogs spit out the leaf and recover with supportive care; the bigger concern is when a determined chewer keeps going.
Most-common to least: sudden, heavy drooling and pawing at the mouth, oral and lip swelling, vomiting, and difficulty swallowing. A dog that chewed and kept chewing may show pronounced swelling and refuse food and water. Systemic toxicity is uncommon.
Signs appear almost immediately after chewing. Pet Poison Helpline describes the mechanism as immediate tissue penetration; symptom duration is not well documented but typically resolves within hours of supportive care.
Call your veterinarian or ASPCA Animal Poison Control (888-426-4435) for any persistent drooling, visible mouth or tongue swelling, vomiting, or refusal to eat or drink. Difficulty breathing or noisy breathing — rare — means call immediately.
Call ASPCA Animal Poison Control at (888) 426-4435 or your veterinarian as soon as possible. Do not induce vomiting unless a veterinarian instructs you to.
Sources: ASPCA, Pet Poison Helpline.
If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.
Dogs — concern notes
Common signs
Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, and difficulty swallowing.
Escalation note
Ingestion typically leads to immediate discomfort due to the release of calcium oxalate crystals. Always consult with a veterinarian if you suspect your dog has consumed this plant.
Safer alternatives
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ASPCA Toxic Plant List
toxicology · 99% reliability
Lacy Tree Philodendron is toxic to both cats and dogs due to the presence of insoluble calcium oxalates.
Yes, Lacy Tree Philodendron (Philodendron bipinnatifidum) is toxic to dogs. It contains insoluble calcium oxalate crystals that cause immediate oral irritation, intense burning of the mouth, tongue, and lips, excessive drooling, vomiting, and difficulty swallowing.
Symptoms appear almost immediately after chewing — the calcium oxalate crystals penetrate tissue on contact. Expect heavy drooling, pawing at the mouth, oral and lip swelling, and possibly vomiting. A dog that chewed repeatedly may show pronounced swelling and refuse to eat or drink. Systemic toxicity is uncommon.
Call ASPCA Animal Poison Control at (888) 426-4435 or your veterinarian as soon as possible. Do not induce vomiting unless a veterinarian specifically instructs you to — the crystals have already caused irritation and forcing vomiting can worsen it.
All parts of the plant contain insoluble calcium oxalate crystals, so any chewing or ingestion — leaves, stems, or roots — can cause irritation. The mechanism is physical: the needle-like crystals penetrate soft tissue in the mouth and throat on contact, which is why symptoms are immediate rather than delayed.
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