Golden trumpet Toxic?

Updated 2026-03-06| 5 min read| 2,556 found this helpful

Leaves contain skin-irritating compounds, with no documented animal poisoning cases reported to date.

The plant is explicitly unsuitable for use as feed for any companion or livestock species.

It is easily confused with non-toxic Mandevilla species, so proper identification is critical.

FAQ

Is Golden trumpet toxic to Humans?

Localized skin redness, itching or rash on contact with leaf sap; no confirmed systemic toxicity reported. (Low)

Is Golden trumpet toxic to Cats?

No published poisoning cases documented, but ingestion may cause mild gastrointestinal upset. (Low)

Is Golden trumpet toxic to Dogs?

No published poisoning cases documented, but ingestion may cause mild gastrointestinal upset. (Low)

Is Golden trumpet toxic to Horses?

No published poisoning cases documented, but ingestion may cause mild gastrointestinal upset. (Low)

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

Toxicity Details

Humans

Low

Localized skin redness, itching or rash on contact with leaf sap; no confirmed systemic toxicity reported.

Cats

Low

No published poisoning cases documented, but ingestion may cause mild gastrointestinal upset.

Dogs

Low

No published poisoning cases documented, but ingestion may cause mild gastrointestinal upset.

Horses

Low

No published poisoning cases documented, but ingestion may cause mild gastrointestinal upset.

Toxicity Snapshot

Toxic PartsLeaves (contain confirmed skin-irritating substances

Exposure RouteDermal contact with damaged leaf sap, accidental ingestion by humans or animals

Toxic CompoundsUnidentified skin-irritating phytochemicals

First Aid & Prevention

First 30 Minutes

• For dermal exposure: Immediately wash affected skin with mild soap and cool running water for 10-15 minutes.
• If ingested: Rinse mouth thoroughly with clean water, do not induce vomiting unless directed by a medical professional.
• For eye exposure: Flush eyes with lukewarm running water for at least 15 minutes, holding eyelids open.

Contact Vet Immediately

• Your pet ingests large quantities of the plant and shows vomiting, diarrhea or appetite loss.
• Your pet develops persistent skin irritation, swelling or lesions after contact with the plant.
• Your horse shows unusual symptoms after potential access to or ingestion of the plant.

Prevention

• Keep the plant out of reach of companion animals, do not plant in areas accessible to grazing livestock.
• Never use this plant as forage or feed for any animal species.
• Learn to distinguish this plant from non-toxic lookalike species to avoid accidental exposure.

Treatment & Prognosis

• Supportive care for gastrointestinal symptoms including fluid administration and anti-emetics if needed.
• Topical corticosteroids may be prescribed for severe skin irritation reactions.
• General symptomatic and supportive care for any observed adverse effects.

Emergency? Open PlantFun for real-time AI guidanceGet App

Professional Toxicology

Scientific NameAllamanda cathartica L. (syn. Allamanda hendersonii W. Bull ex Dombrain, Allamanda nobilis T. Moore)

AliasesCommon trumpetvine、Yellow allamanda、Goldtrompete、Allamanda jaune、Liane à lait、Trompette d'or、Allamanda

Toxicity Grade

HumansLow

CatsLow

DogsLow

HorsesLow

Target Organs

SkinGastrointestinal tract (if large quantities are ingested)

Mechanism of Action

• Skin-irritating compounds in leaves trigger localized inflammatory response on contact; no confirmed systemic toxicity mechanism documented

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle: No confirmed poisoning cases reported, but the plant is unsuitable as feed, may cause mild gastrointestinal upset if ingested in large amounts

Sheep and goats: No confirmed poisoning cases reported, but the plant is unsuitable as forage

Small companion mammals (rabbits, guinea pigs: No confirmed poisoning cases reported, but ingestion may cause mild adverse effects

Confusion Risk

The following plants look similar and may be confused:

Other Allamanda species Allamanda spp.

Visually similar due to shared trumpet-shaped flower structure; toxicity levels may vary across different Allamanda species.

Mandevilla species Mandevilla spp.

Visually similar large trumpet-shaped flowers; Mandevilla species are non-toxic, misidentification can lead to unnecessary risk.

Use PlantFun to scan and avoid misidentificationGet App

Related Toxic Plants

Oleander

Nerium oleander L.

Severe toxicity, ingestion can cause fatal cardiac arrhythmias in all species

Desert rose

Adenium obesum (Forssk.) Roem. & Schult.

High toxicity, contains cardiac glycosides that trigger severe cardiac and gastrointestinal symptoms

Crown flower

Calotropis procera (Aiton) W.T.Aiton

Moderate to high toxicity, contains cardenolides that cause skin irritation and systemic toxicity if ingested

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.

Data Sources

1. CliniTox (Universität Zürich)

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