Lacy tree philodendron Toxic?

Updated 2026-03-06| 3 min read| 3,134 found this helpful
Lacy tree philodendron
1

All parts of the plant contain needle-like calcium oxalate raphides and soluble oxalates that drive toxic effects

2

Mild exposure triggers mucous membrane and gastrointestinal irritation, while high doses cause organ damage, arrhythmia or seizures

3

Birds face extremely high severe toxicity risk even from small amounts of ingested plant material

FAQ

Is Lacy tree philodendron toxic to Humans?

Excessive salivation, vomiting, diarrhea, bleeding of gums, gastrointestinal tract or uterus, difficulty breathing (pharyngeal edema), difficulty swallowing (laryngeal edema). High doses may cause seizures, ataxia, low blood pressure, heart arrhythmia, liver and kidney damage. (Moderate)

Is Lacy tree philodendron toxic to Cats?

Oral irritation, excessive drooling, vomiting, diarrhea, difficulty swallowing, mouth/throat swelling. High doses may cause hypocalcemia, liver and kidney damage. (Moderate)

Is Lacy tree philodendron toxic to Dogs?

Oral irritation, excessive drooling, vomiting, diarrhea, difficulty swallowing, mouth/throat swelling. High doses may cause hypocalcemia, liver and kidney damage. (Moderate)

Is Lacy tree philodendron toxic to Horses?

Oral irritation, excessive drooling, colic, diarrhea, difficulty swallowing, mouth/throat swelling. High doses may cause hypocalcemia, liver and kidney damage. (Moderate)

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Toxicity Details

Humans
Moderate

Excessive salivation, vomiting, diarrhea, bleeding of gums, gastrointestinal tract or uterus, difficulty breathing (pharyngeal edema), difficulty swallowing (laryngeal edema). High doses may cause seizures, ataxia, low blood pressure, heart arrhythmia, liver and kidney damage.

Cats
Moderate

Oral irritation, excessive drooling, vomiting, diarrhea, difficulty swallowing, mouth/throat swelling. High doses may cause hypocalcemia, liver and kidney damage.

Dogs
Moderate

Oral irritation, excessive drooling, vomiting, diarrhea, difficulty swallowing, mouth/throat swelling. High doses may cause hypocalcemia, liver and kidney damage.

Horses
Moderate

Oral irritation, excessive drooling, colic, diarrhea, difficulty swallowing, mouth/throat swelling. High doses may cause hypocalcemia, liver and kidney damage.

Toxicity Snapshot

Toxic PartsAll parts of the plant
Exposure RouteIngestion of plant tissue, contact of plant sap/tissue with mucous membranes (mouth, eyes, nasal passages)
Toxic CompoundsNeedle-shaped calcium oxalate crystals (raphides); Soluble oxalic acid; Oxalate salts; Dicarboxylic acids

First Aid & Prevention

First 30 Minutes

  • • Remove all remaining plant material from the mouth, skin or fur of the exposed individual immediately
  • • Rinse affected mucous membranes (mouth, eyes) thoroughly with cool, clean running water for 10-15 minutes
  • • Offer small sips of water or milk to dilute oxalates if small amounts were ingested and the individual is alert
  • • Monitor closely for signs of throat swelling, difficulty breathing or abnormal bleeding

Contact Vet Immediately

  • • Large amounts of plant material were ingested
  • • Symptoms including difficulty breathing, bleeding, seizures, or irregular heart rate are observed
  • • Symptoms persist for more than 2 hours after initial first aid
  • • Exposure occurred in birds, who face extreme severe toxicity risk

Prevention

  • • Keep the plant out of reach of children, pets and pet birds at all times
  • • Wear disposable gloves when pruning or handling the plant to avoid contact with irritant sap
  • • Label the plant clearly if kept in shared living or workspace to prevent accidental ingestion

Treatment & Prognosis

  • • Decontamination: induced vomiting or activated carbon administration for recent ingestion if clinically appropriate
  • • Symptomatic care: analgesics for pain, antihistamines for mild swelling, glucocorticoids for severe airway swelling
  • • Calcium supplementation for cases of very large ingestion to correct hypocalcemia
  • • Supportive care including liver/kidney function monitoring and heart rhythm management for severe exposures
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Professional Toxicology

Scientific NamePhilodendron bipinnatifidum Schott ex Endl. (syn. Philodendron selloum K. Koch)
AliasesTree philodendron、Split-Leaf philodendron、Cut-leaf philodendron、Selloum
Toxicity Grade
HumansModerate
CatsModerate
DogsModerate
HorsesModerate
Target Organs
Oral mucosaGumsPharynxLarynxGastrointestinal tractUterusLiverKidneysCardiovascular systemNervous system
Mechanism of Action

• Needle-shaped calcium oxalate raphides puncture mucous membranes on contact, causing immediate pain, swelling and irritation

• Soluble oxalates bind to systemic calcium, causing hypocalcemia, and accumulate in organs to cause liver and kidney damage at high doses

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Birds: Severe toxicity even from small ingestion, may cause rapid onset of life-threatening symptoms including organ failure and death
Confusion Risk

The following plants look similar and may be confused:

Other Philodendron species Philodendron spp.
Similar growth habit and leaf morphology; all Philodendron species contain comparable toxic calcium oxalate crystals and carry similar risk
Swiss Cheese Plant Monstera deliciosa
Similar large, deeply split leaf appearance; also contains toxic calcium oxalate crystals and poses equivalent ingestion risk
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Data Sources

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.

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