Withered Snapdragon Toxic?

Updated 2026-03-06| 3 min read| 2,978 found this helpful

Anthirrhinum multiflorum

Withered Snapdragon is confirmed non-toxic to domestic cats and dogs per standard toxicology databases

No verified toxicity data is available to formally assess ingestion risk for horses as of current assessments

Excessive consumption of any non-food plant may cause mild, temporary digestive upset in all animal species

FAQ

Is Withered Snapdragon toxic to Humans?

No confirmed toxic effects reported; mild abdominal discomfort or loose stools may occur with large, accidental ingestion (Non-toxic)

Is Withered Snapdragon toxic to Cats?

No toxic symptoms expected; mild, short-term vomiting or diarrhea may occur only if extremely large quantities are consumed (Non-toxic)

Is Withered Snapdragon toxic to Dogs?

No toxic symptoms expected; mild, temporary digestive upset may occur with excessive ingestion of plant material (Non-toxic)

Is Withered Snapdragon toxic to Horses?

No confirmed symptom data exists due to unstudied toxicity status; monitor closely if ingestion is suspected (Low)

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Toxicity Details

Humans

Non-toxic

No confirmed toxic effects reported; mild abdominal discomfort or loose stools may occur with large, accidental ingestion

Cats

Non-toxic

No toxic symptoms expected; mild, short-term vomiting or diarrhea may occur only if extremely large quantities are consumed

Dogs

Non-toxic

No toxic symptoms expected; mild, temporary digestive upset may occur with excessive ingestion of plant material

Horses

Low

No confirmed symptom data exists due to unstudied toxicity status; monitor closely if ingestion is suspected

Toxicity Snapshot

Toxic PartsNo toxic plant parts are confirmed for cats or dogs; toxic parts status for horses is unstudied

Exposure RoutePrimary exposure route is accidental ingestion of leaves, stems, flowers, or seed pods by pets or grazing livestock

Toxic Compounds

First Aid & Prevention

First 30 Minutes

• Remove any remaining plant material from the affected animal's mouth and surrounding area to stop further ingestion
• Offer small amounts of fresh, clean water to rinse the mouth and soothe any potential mild oral irritation
• Monitor the animal closely for 2 to 3 hours for any signs of unusual distress or persistent digestive symptoms

Contact Vet Immediately

• Your pet displays persistent vomiting, diarrhea, lethargy, or unusual behavior lasting more than 3 hours after ingestion
• Your horse has consumed any quantity of the plant, given its unconfirmed toxicity status
• The affected animal has pre-existing digestive disorders or other health conditions that may increase risk of adverse effects

Prevention

• Avoid planting this species in horse grazing pastures until its toxicity status is formally confirmed
• Monitor young or curious pets near ornamental plantings to prevent excessive consumption of non-food vegetation
• Label all ornamental and landscape plants on your property to enable quick identification in case of accidental ingestion

Treatment & Prognosis

• No targeted treatment is required for small incidental ingestion in cats or dogs, as no toxic effects are expected
• For large ingestion causing mild digestive upset, provide supportive care including oral fluids and a bland diet for 24 to 48 hours
• If a horse ingests the plant, contact a veterinarian immediately for personalized evaluation and guidance

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Professional Toxicology

Scientific NameAnthirrhinum multiflorum

Aliases

Toxicity Grade

HumansNon-toxic

CatsNon-toxic

DogsNon-toxic

HorsesLow

Target Organs

No specific target organs for toxic effects have been documented, as no confirmed toxicity has been reported

Mechanism of Action

• No toxic mechanism of action has been identified for this species in cats or dogs; potential effects in horses are unstudied

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cat: Confirmed non-toxic; no adverse effects expected from typical incidental ingestion

Dog: Confirmed non-toxic; mild digestive upset may only occur with very large consumption

Horse: Toxicity status unknown; no formal assessment of ingestion risk has been completed to date

Small domestic mammals (rabbits, guinea pigs): No specific toxicity data available; monitor for mild digestive upset if accidental ingestion occurs

Confusion Risk

The following plants look similar and may be confused:

Common Foxglove Digitalis purpurea

Both produce tall spires of tubular flowers; foxglove flowers are larger, have spotted interior markings, and are severely toxic to all species, unlike Withered Snapdragon

Common Monkey Flower Mimulus guttatus

Both have bright, irregular tubular flowers; monkey flowers grow exclusively in wet riparian habitats, while Withered Snapdragon favors dry, sunny slopes

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Related Toxic Plants

Common Foxglove

Digitalis purpurea

Severe toxicity to all mammals, may cause fatal cardiac arrhythmia

Yellow Foxglove

Digitalis lutea

High toxicity to humans, pets and grazing livestock

Common Figwort

Scrophularia nodosa

Moderate toxicity, causes digestive distress and skin irritation if consumed in large quantities

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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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