Green spurge Toxic?

Updated 2026-03-06| 4 min read| 1,411 found this helpful
Green spurge
1

All plant parts containing milky sap are toxic, and toxic terpenes are not destroyed by drying or storage.

2

Ingestion can cause severe gastrointestinal, neurological and cardiac symptoms, and toxins may be excreted in cow milk.

3

Eye contact with sap triggers severe conjunctivitis and corneal inflammation, requiring prompt medical attention.

FAQ

Is Green spurge toxic to Humans?

Bloody diarrhea, vomiting, colic, unsteadiness, seizures, circulatory collapse, irregular heartbeat, bloody urine; eye contact causes severe conjunctivitis and corneal inflammation. (High)

Is Green spurge toxic to Cats?

No species-specific clinical data available; expected to present with gastrointestinal irritation, neurological symptoms, and cardiac abnormalities if ingested, consistent with other toxic Euphorbia species. (Unknown)

Is Green spurge toxic to Dogs?

No species-specific clinical data available; expected to present with gastrointestinal irritation, neurological symptoms, and cardiac abnormalities if ingested, consistent with other toxic Euphorbia species. (Unknown)

Is Green spurge toxic to Horses?

No species-specific clinical data available; expected to present with gastrointestinal irritation, neurological symptoms, and cardiac abnormalities if ingested, consistent with other toxic Euphorbia species. (Unknown)

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Toxicity Details

Humans
High

Bloody diarrhea, vomiting, colic, unsteadiness, seizures, circulatory collapse, irregular heartbeat, bloody urine; eye contact causes severe conjunctivitis and corneal inflammation.

Cats
Unknown

No species-specific clinical data available; expected to present with gastrointestinal irritation, neurological symptoms, and cardiac abnormalities if ingested, consistent with other toxic Euphorbia species.

Dogs
Unknown

No species-specific clinical data available; expected to present with gastrointestinal irritation, neurological symptoms, and cardiac abnormalities if ingested, consistent with other toxic Euphorbia species.

Horses
Unknown

No species-specific clinical data available; expected to present with gastrointestinal irritation, neurological symptoms, and cardiac abnormalities if ingested, consistent with other toxic Euphorbia species.

Toxicity Snapshot

Toxic PartsAll plant parts that contain milky sap. The plant is rarely eaten due to its sharp, unpleasant odor.
Exposure RouteIngestion of plant material, eye or dermal contact with toxic milky sap
Toxic CompoundsIngenol esters; Phorbol esters; Euphol

First Aid & Prevention

First 30 Minutes

  • • If ingested, rinse mouth thoroughly with clean water, do not induce vomiting unless directed by a medical professional or veterinarian.
  • • If sap gets in eyes, flush immediately with lukewarm running water for at least 15 minutes, holding eyelids open to ensure full irrigation.
  • • Remove any plant material remaining on skin, fur, or clothing to prevent further exposure to toxic sap.

Contact Vet Immediately

  • • Ingestion of any amount of the plant by a companion animal or grazing livestock.
  • • Development of symptoms like vomiting, bloody diarrhea, seizures, unsteadiness, or eye pain/redness after exposure.
  • • Abnormal heart rate, difficulty breathing, or altered consciousness following exposure.

Prevention

  • • Remove the plant from areas accessible to children, pets, and grazing livestock.
  • • Wear protective gloves and goggles when handling the plant to avoid contact with milky sap.
  • • Inspect hay and dried livestock feed for contamination, as toxins remain active even after drying and storage.

Treatment & Prognosis

  • • Decontamination of the exposure site (mouth, skin, eyes) to remove remaining plant material or sap.
  • • Symptomatic supportive care including fluid therapy, anti-emetics, anti-seizure medication, and cardiac monitoring as needed.
  • • Specialized ophthalmological care for cases involving eye exposure to sap.
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Professional Toxicology

Scientific NameEuphorbia esula L.
AliasesLeafy spurge、Sharp spurge、Donkey spurge
Toxicity Grade
HumansHigh
CatsUnknown
DogsUnknown
HorsesUnknown
Target Organs
Gastrointestinal tractEyesSkinNervous systemHeartKidneys
Mechanism of Action

• Irritant terpenes (phorbol esters, ingenol esters) cause immediate inflammation of contacted mucosal, dermal and ocular tissues.

• Toxic compounds disrupt nervous system signaling and cardiac rhythm, leading to neurological and cardiovascular complications.

• Toxins damage kidney and gastrointestinal tissue, resulting in bloody urine and bloody diarrhea in severe cases.

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle: Poisoning possible via contaminated dry feed; symptoms include colic, vomiting, bloody diarrhea, bloody urine, muscle tremors, and unsteadiness. Toxins are excreted in milk, which may turn reddish or have an altered taste.
Sheep: Ingestion of fresh plant causes severe swelling and inflammation of the oral mucosa, excessive salivation, and diarrhea; full recovery typically occurs after moving to an uncontaminated pasture.
Birds: Very severely toxic (+++ per CliniTox scale), ingestion can cause rapid onset of life-threatening symptoms.
Confusion Risk

The following plants look similar and may be confused:

Cypress spurge Euphorbia cyparissias
Member of the same Euphorbia genus, produces similar toxic milky sap and has a similar growth habit; distinguished by narrower, feathery leaves compared to leafy spurge.
Sun spurge Euphorbia helioscopia
Another common Euphorbia species with matching milky sap and small green flowers; distinguished by broader, rounded leaves and shorter growth height.
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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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