Coltsfoot Toxic?

Updated 2026-03-06| 4 min read| 2,599 found this helpful
Coltsfoot
1

Wild coltsfoot has low toxicity, while the 'Wien' cultivar is confirmed non-toxic

2

Liver damage risk only occurs if the plant contains pyrrolizidine alkaloids, which are absent in some regional populations (e.g. Swiss specimens)

3

The entire plant is considered toxic in populations where pyrrolizidine alkaloids are present

FAQ

Is Coltsfoot toxic to Humans?

Liver damage if pyrrolizidine alkaloids are present, consistent with Senecio species poisoning (Low)

Is Coltsfoot toxic to Cats?

No specific clinical symptom data available for this species (Unknown)

Is Coltsfoot toxic to Dogs?

No specific clinical symptom data available for this species (Unknown)

Is Coltsfoot toxic to Horses?

No specific clinical symptom data available for this species (Unknown)

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

Toxicity Details

Humans
Low

Liver damage if pyrrolizidine alkaloids are present, consistent with Senecio species poisoning

Cats
Unknown

No specific clinical symptom data available for this species

Dogs
Unknown

No specific clinical symptom data available for this species

Horses
Unknown

No specific clinical symptom data available for this species

Toxicity Snapshot

Toxic PartsEntire plant
Exposure RouteOral ingestion (primary exposure route via consumption of contaminated feed or foraged plant material)
Toxic CompoundsPolyphenols; Flavonoids; Pyrrolizidine alkaloids (may be absent in some regional populations)

First Aid & Prevention

First 30 Minutes

  • • Immediately stop consuming or feeding any coltsfoot-containing products
  • • Induce vomiting only if explicitly advised by a medical professional or veterinarian within 30 minutes of ingestion
  • • Collect a sample of the ingested plant for formal identification

Contact Vet Immediately

  • • If signs of illness (lethargy, jaundice, abdominal pain) appear after coltsfoot ingestion
  • • If a large quantity of wild coltsfoot has been ingested by humans or animals
  • • If liver function abnormalities are detected following known coltsfoot exposure

Prevention

  • • Avoid harvesting wild coltsfoot for consumption unless tested and confirmed free of pyrrolizidine alkaloids
  • • Use only the non-toxic 'Wien' cultivar if growing coltsfoot for edible or medicinal use
  • • Prevent grazing access to wild coltsfoot stands for companion animals and livestock

Treatment & Prognosis

  • • Immediately discontinue all exposure to coltsfoot-containing feed or products
  • • Provide supportive care for liver function as directed by a qualified healthcare provider or veterinarian
  • • No curative treatment exists for established pyrrolizidine alkaloid-related liver damage
Emergency? Open PlantFun for real-time AI guidanceGet App

Professional Toxicology

Scientific NameTussilago farfara L.
AliasesHuflattich、Tussilage、Pas-d'âne、Tossilaggine comune、Farfugio
Toxicity Grade
HumansLow
CatsUnknown
DogsUnknown
HorsesUnknown
Target Organs
Liver
Mechanism of Action

• Pyrrolizidine alkaloids, when present in the plant, induce cumulative toxic liver damage identical to that caused by Senecio species poisoning

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

General grazing livestock: Chronic low-level ingestion of wild, pyrrolizidine alkaloid-positive coltsfoot can lead to cumulative irreversible liver damage over time
Confusion Risk

The following plants look similar and may be confused:

White butterbur Petasites albus
Leaves of the two species are visually very similar; white butterbur is toxic, so positive identification is required before consuming any foraged coltsfoot
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 Care Guide Plant ID Uses & Culture
PlantFun

PlantFun

⭐ 4.9 rating · AI toxicity check

Get App