Copperleaf Toxic?

Updated 2026-03-06| 3 min read| 3,878 found this helpful

Acalypha godseffiana

Copperleaf is confirmed toxic to cats, dogs, and horses per ASPCA data

Its primary active toxic compounds are irritant diterpene esters

Exposure typically causes mild to moderate gastrointestinal clinical signs

FAQ

Is Copperleaf toxic to Humans?

No formal human toxicity reports exist, but sap contact may cause mild skin or mucous membrane irritation consistent with related Euphorbiaceae species (Low)

Is Copperleaf toxic to Cats?

Drooling, vomiting, diarrhea (Low)

Is Copperleaf toxic to Dogs?

Drooling, vomiting, diarrhea (Low)

Is Copperleaf toxic to Horses?

Drooling, vomiting, diarrhea (Low)

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Toxicity Details

Humans

Low

No formal human toxicity reports exist, but sap contact may cause mild skin or mucous membrane irritation consistent with related Euphorbiaceae species

Cats

Low

Drooling, vomiting, diarrhea

Dogs

Low

Drooling, vomiting, diarrhea

Horses

Low

Drooling, vomiting, diarrhea

Toxicity Snapshot

Toxic PartsAll plant parts, particularly broken stems and leaves that exude sap

Exposure RouteIngestion, direct skin or mucous membrane contact with plant sap

Toxic CompoundsDiterpene esters

First Aid & Prevention

First 30 Minutes

• Remove all remaining plant material from the exposed animal's mouth or skin immediately
• Rinse affected skin or mucous membranes with cool, clean running water for 10-15 minutes
• Do not induce vomiting unless explicitly directed to do so by a licensed veterinarian

Contact Vet Immediately

• If the animal has ingested any amount of Copperleaf plant material
• If symptoms including drooling, vomiting, or diarrhea develop after exposure
• If skin redness, swelling, or irritation persists after rinsing the affected area

Prevention

• Keep Copperleaf plants out of reach of cats, dogs, and horses in homes, yards, and stables
• Label potted Copperleaf plants clearly to avoid accidental exposure for pets and livestock
• Wear disposable gloves when handling the plant to avoid contact with irritant sap

Treatment & Prognosis

• Supportive care including fluid therapy to address dehydration caused by vomiting and diarrhea
• Symptomatic treatment with vet-prescribed anti-emetics and gastrointestinal protectants
• Topical anti-inflammatory care for skin or mucous membrane irritation cases

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Professional Toxicology

Scientific NameAcalypha godseffiana

AliasesFirestorm、match-me-if-you-can

Toxicity Grade

HumansLow

CatsLow

DogsLow

HorsesLow

Target Organs

Gastrointestinal tractSkinOral mucous membranes

Mechanism of Action

• Diterpene esters in plant tissue irritate the lining of mucous membranes and the gastrointestinal tract on contact or ingestion

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Small companion mammals (rabbits, guinea pigs, hamsters): Expected to be similarly toxic to cats and dogs, with ingestion triggering gastrointestinal irritation including drooling, soft stools, and reduced appetite

Pet birds: Limited toxicity data available, but ingestion of plant material is not recommended as diterpene esters may cause digestive upset

Confusion Risk

The following plants look similar and may be confused:

Common Coleus Plectranthus scutellarioides

Both have bright, variegated foliage; Coleus belongs to the non-toxic Lamiaceae family, while Copperleaf is in the toxic Euphorbiaceae family, making misidentification a risk for pet owners

Croton Codiaeum variegatum

Both have glossy, multicolored leaves; Croton has thicker, leathery foliage and contains similar toxic diterpene esters, so misidentification leads to unrecognized exposure risks

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Related Toxic Plants

Poinsettia

Euphorbia pulcherrima

Low toxicity, causes mild gastrointestinal irritation and skin rashes on exposure

Castor Bean

Ricinus communis

Severe toxicity, even small ingestion amounts can cause fatal organ failure in humans and animals

Crown of Thorns

Euphorbia milii

Moderate toxicity, causes severe skin irritation and significant gastrointestinal distress if ingested

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Data Sources

1. ASPCA Animal Poison Control

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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