Gypsywort Toxic?

Updated 2026-03-06| 4 min read| 2,593 found this helpful

No confirmed toxicity cases or evidence of harmful effects in humans, cats, dogs, or horses have been found in published research.

Despite no proven toxicity, the plant is explicitly not recommended for use as feed for any domestic animals or livestock.

It is visually similar to multiple common non-toxic edible species in the Lamiaceae family, posing a low misidentification risk.

FAQ

Is Gypsywort toxic to Humans?

No confirmed toxic symptoms reported in available literature; mild gastrointestinal discomfort may occur in rare cases after large ingestion. (Non-toxic)

Is Gypsywort toxic to Cats?

No confirmed toxic symptoms reported in available literature; adverse effects are unlikely after small accidental ingestion. (Non-toxic)

Is Gypsywort toxic to Dogs?

No confirmed toxic symptoms reported in available literature; adverse effects are unlikely after small accidental ingestion. (Non-toxic)

Is Gypsywort toxic to Horses?

No confirmed toxic symptoms reported in available literature; adverse effects are unlikely after small accidental ingestion. (Non-toxic)

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Toxicity Details

Humans

Non-toxic

No confirmed toxic symptoms reported in available literature; mild gastrointestinal discomfort may occur in rare cases after large ingestion.

Cats

Non-toxic

No confirmed toxic symptoms reported in available literature; adverse effects are unlikely after small accidental ingestion.

Dogs

Non-toxic

No confirmed toxic symptoms reported in available literature; adverse effects are unlikely after small accidental ingestion.

Horses

Non-toxic

No confirmed toxic symptoms reported in available literature; adverse effects are unlikely after small accidental ingestion.

Toxicity Snapshot

Toxic PartsNo toxic plant parts identified; existing research shows no evidence of toxicity, but the entire plant is not suitable for use as animal feed.

Exposure RouteOral ingestion is the only documented potential exposure route; no dermal or inhaled toxicity has been reported.

Toxic CompoundsNo toxic phytochemicals have been identified in peer-reviewed toxicological studies of this species

First Aid & Prevention

First 30 Minutes

• Rinse mouth of any remaining plant material if ingested by humans or pets.
• Monitor for 1-2 hours for unusual gastrointestinal discomfort, though adverse effects are unlikely.
• Save any remaining plant material for formal identification if unusual symptoms develop.

Contact Vet Immediately

• If your pet ingests large quantities of the plant and develops persistent vomiting, diarrhea, or lethargy.
• If you cannot confirm the plant's identity and suspect it may be a toxic lookalike species.

Prevention

• Do not harvest or feed this plant to any pets, livestock, or working animals.
• Learn to distinguish this plant from other edible Lamiaceae species if foraging for wild edible plants.
• Keep wild stands of the plant out of reach of young pets that may chew unfamiliar vegetation.

Treatment & Prognosis

• No specific treatment is required for small accidental ingestions.
• Provide symptomatic supportive care (fluids, anti-emetics) if mild gastrointestinal discomfort occurs after large ingestion.

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Professional Toxicology

Scientific NameLycopus europaeus L.s.l.; Lycopus aquaticus Moench

AliasesEuropean bugleweed

Toxicity Grade

HumansNon-toxic

CatsNon-toxic

DogsNon-toxic

HorsesNon-toxic

Target Organs

No organs have been identified as targets of toxic effects from this plant

Mechanism of Action

• No toxic mechanism of action has been identified, as no harmful effects from this plant have been documented in research

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Livestock (cattle, sheep, goats): No confirmed toxicity reported, but the plant is not approved for use as a feed source

Small companion mammals (rabbits, guinea pigs): No toxicity data available; avoid feeding as forage to prevent unforeseen adverse effects

Confusion Risk

The following plants look similar and may be confused:

Mint species Mentha spp.

Visually similar due to shared square stems and opposite leaves characteristic of the Lamiaceae family; mint has a distinct strong aromatic scent when crushed that gypsywort lacks.

Lemon balm Melissa officinalis

Shares a similar leaf shape and damp habitat preference; lemon balm has a strong citrus scent when crushed, unlike the mild, non-distinct scent of gypsywort.

White dead-nettle Lamium album

Has similar serrated leaf structure; white dead-nettle produces distinctive clustered white flowers, while gypsywort produces small, sparse pale white or light pink flowers.

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Related Toxic Plants

Perilla mint

Perilla frutescens

Highly toxic to ruminants, dogs, and cats

Diviner's sage

Salvia divinorum

Moderately toxic (psychoactive effects and organ damage in high doses)

Ground ivy

Glechoma hederacea

Low to moderately toxic to horses and cattle in large quantities

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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.