Tree Philodendron Toxic?

Updated 2026-03-06| 3 min read| 4,087 found this helpful
Tree Philodendron
1

Confirmed toxic to cats and dogs; toxicity risk to horses is currently unstudied and unknown

2

Primary toxic component is sharp, insoluble calcium oxalate crystals that trigger immediate local irritation

3

Ingestion typically causes oral pain, drooling, vomiting, and difficulty swallowing in affected animals

FAQ

Is Tree Philodendron toxic to Humans?

Expected to cause oral irritation, intense burning of the mouth/lips/tongue, drooling, vomiting, and difficulty swallowing consistent with calcium oxalate exposure (Low)

Is Tree Philodendron toxic to Cats?

Oral irritation, intense burning and irritation of the mouth, lips, tongue, excessive drooling, vomiting, difficulty in swallowing (Moderate)

Is Tree Philodendron toxic to Dogs?

Oral irritation, intense burning and irritation of the mouth, lips, tongue, excessive drooling, vomiting, difficulty in swallowing (Moderate)

Is Tree Philodendron toxic to Horses?

Toxicity risk and associated clinical signs are currently unconfirmed (Unknown)

Not sure which plant? Snap a photo to ID in 1 secondGet App

Toxicity Details

Humans
Low

Expected to cause oral irritation, intense burning of the mouth/lips/tongue, drooling, vomiting, and difficulty swallowing consistent with calcium oxalate exposure

Cats
Moderate

Oral irritation, intense burning and irritation of the mouth, lips, tongue, excessive drooling, vomiting, difficulty in swallowing

Dogs
Moderate

Oral irritation, intense burning and irritation of the mouth, lips, tongue, excessive drooling, vomiting, difficulty in swallowing

Horses
Unknown

Toxicity risk and associated clinical signs are currently unconfirmed

Toxicity Snapshot

Toxic PartsAll plant tissues including leaves, stems, roots, and sap contain toxic calcium oxalate crystals
Exposure RouteIngestion of plant material, contact of plant sap with mucous membranes (mouth, eyes, nose)
Toxic CompoundsCalcium oxalate crystals

First Aid & Prevention

First 30 Minutes

  • • Remove any remaining plant matter from the affected individual's mouth immediately
  • • Rinse the mouth thoroughly with cool, clean water to reduce crystal-related irritation
  • • Offer small sips of plain water or milk if the individual can swallow without distress
  • • Monitor closely for signs of breathing difficulty or swelling around the mouth/face

Contact Vet Immediately

  • • Your pet is experiencing excessive drooling, repeated vomiting, or obvious oral pain after exposure
  • • Your pet shows signs of difficulty swallowing, breathing, or has swelling around the mouth/face
  • • A large volume of plant material was ingested, or symptoms persist for more than 2 hours

Prevention

  • • Place potted Tree Philodendron plants in areas completely inaccessible to pets and young children
  • • Wear disposable gloves when pruning or handling the plant to avoid sap contact with skin or eyes
  • • Dispose of all pruned plant cuttings immediately in sealed waste containers to prevent accidental ingestion

Treatment & Prognosis

  • • Supportive care including cool oral rinses and pain management to reduce local irritation
  • • Antihistamines or anti-inflammatory medications may be administered to reduce tissue swelling
  • • Fluid therapy may be provided if dehydration occurs due to vomiting or difficulty ingesting water
  • • Rare severe cases may require airway support if upper airway swelling develops
Emergency? Open PlantFun for real-time AI guidanceGet App

Professional Toxicology

Scientific NamePhilodendron selloum
AliasesHope Selloum、Lacy Tree Philodendron、Split-leaf Philodendron
Toxicity Grade
HumansLow
CatsModerate
DogsModerate
HorsesUnknown
Target Organs
Oral mucosa (mouth, lips, tongue)Esophagus and upper airwayGastrointestinal tract
Mechanism of Action

• Insoluble calcium oxalate crystals present in all plant tissues embed into soft mucous membrane tissue upon ingestion or contact, triggering immediate pain, irritation, and inflammation of affected areas

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Small companion mammals (rabbits, guinea pigs, hamsters): Expected to exhibit the same oral and gastrointestinal irritation symptoms as cats and dogs if plant material is ingested
Pet birds: Formal toxicity data is limited, but ingestion is not recommended as calcium oxalate crystals may cause digestive tract irritation
Ruminant livestock (cattle, sheep, goats): Toxicity risk is unconfirmed, but exposure should be avoided to prevent potential adverse effects
Confusion Risk

The following plants look similar and may be confused:

Swiss Cheese Plant Monstera deliciosa
Visually similar due to large, deeply lobed dark green leaves; key difference is Monstera leaves have distinct internal perforations (holes) absent in Tree Philodendron. Both are in the Araceae family with similar calcium oxalate toxicity.
Mini Monstera Rhaphidophora tetrasperma
Smaller growth habit but shares a similar lobed leaf shape; key difference is significantly smaller mature leaf size and narrower, more pointed lobes. It also carries identical calcium oxalate toxicity as a member of the Araceae family.
Use PlantFun to scan and avoid misidentificationGet App

Related Toxic Plants

Download PlantFun App

Identify, grow and care for plants effectively!

Instant Plant ID

Take a photo to quickly identify plants.

Smart Care Reminders

Generate watering and care schedules.

Toxicity & Disease Diagnosis

Identify toxic plants and pests with treatment advice.

Download on the App Store

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.

View Full Plant Wiki
PlantFun

PlantFun

⭐ 4.9 rating · AI toxicity check

Get App