Jackson Brier Toxic?

Updated 2026-03-06| 4 min read| 3,003 found this helpful

Smilax lanceolata

Smilax lanceolata is confirmed non-toxic to cats, dogs, and horses per official ASPCA toxicology data

No harmful toxic principles have been documented in any part of this plant species

Accidental ingestion by common domestic pets or livestock is not expected to cause adverse health effects

FAQ

Is Jackson Brier toxic to Humans?

No expected adverse toxic symptoms; if unusual reactions (e.g. allergy) occur, consult a medical provider to rule out other causes (Non-toxic)

Is Jackson Brier toxic to Cats?

No expected adverse toxic symptoms; if persistent unusual symptoms occur, contact a veterinarian to rule out unrelated health issues (Non-toxic)

Is Jackson Brier toxic to Dogs?

No expected adverse toxic symptoms; if persistent unusual symptoms occur, contact a veterinarian to rule out unrelated health issues (Non-toxic)

Is Jackson Brier toxic to Horses?

No expected adverse toxic symptoms; if persistent unusual symptoms occur, contact a veterinarian to rule out unrelated health issues (Non-toxic)

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Toxicity Details

Humans

Non-toxic

No expected adverse toxic symptoms; if unusual reactions (e.g. allergy) occur, consult a medical provider to rule out other causes

Cats

Non-toxic

No expected adverse toxic symptoms; if persistent unusual symptoms occur, contact a veterinarian to rule out unrelated health issues

Dogs

Non-toxic

No expected adverse toxic symptoms; if persistent unusual symptoms occur, contact a veterinarian to rule out unrelated health issues

Horses

Non-toxic

No expected adverse toxic symptoms; if persistent unusual symptoms occur, contact a veterinarian to rule out unrelated health issues

Toxicity Snapshot

Toxic PartsNo parts of this plant are considered toxic to humans, cats, dogs, or horses per available data

Exposure RouteAll common exposure routes (ingestion, skin contact, inhalation of plant matter) carry no documented toxic risk

Toxic CompoundsNo identified toxic compounds; species is formally classified as non-toxic by the ASPCA

First Aid & Prevention

First 30 Minutes

• Rinse mouth with clean water if plant matter was ingested to remove residual debris
• Wash skin areas that came into contact with plant thorns with mild soap and water to prevent minor irritation
• Monitor for rare allergic reactions, as no standard toxic effects are expected

Contact Vet Immediately

• If your pet exhibits persistent vomiting, lethargy, or other unusual symptoms after exposure, contact a vet to rule out other health causes
• If a human shows signs of severe allergic reaction (hives, difficulty breathing), seek emergency medical care immediately

Prevention

• No toxicity-specific prevention steps are required for this non-toxic species
• Wear gloves when handling the plant if desired to avoid scratches from its natural thorny growth

Treatment & Prognosis

• No targeted treatment for toxic exposure is needed, as no toxic effects are expected
• Treat minor thorn scratches or mild allergic reactions symptomatically as recommended by a medical or veterinary provider

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Professional Toxicology

Scientific NameSmilax lanceolata

AliasesLanceleaf Greenbrier、Lanceleaf Smilax

Toxicity Grade

HumansNon-toxic

CatsNon-toxic

DogsNon-toxic

HorsesNon-toxic

Target Organs

No organs are at risk of toxic damage from exposure to this plant

Mechanism of Action

• No toxic mechanism has been documented for this species, as it is classified as fully non-toxic

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Rabbit: No documented toxic risk; consumption in moderate amounts is considered safe as part of a forage diet

Guinea Pig: No identified toxic effects from ingestion of small quantities of plant matter

Backyard Poultry: No adverse effects reported from accidental consumption of leaves or stems

Confusion Risk

The following plants look similar and may be confused:

Roundleaf Greenbrier Smilax rotundifolia

Shares the same thorny vining growth habit; key difference is S. rotundifolia has wide, rounded leaves rather than the narrow lance-shaped leaves of S. lanceolata

Saw Greenbrier Smilax bona-nox

Has similar thorny vining growth common to the Smilax genus; distinguishable by spiny leaf edges, which are absent on S. lanceolata foliage

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Related Toxic Plants

Lily of the Valley

Convallaria majalis

High Toxicity, can cause fatal cardiac arrhythmia in humans and all common domestic animals

Easter Lily

Lilium longiflorum

Severe Toxicity, fatal to cats even if very small amounts are ingested

Common Tulip

Tulipa spp.

Low to Moderate Toxicity, bulbs contain compounds that cause severe oral irritation and gastrointestinal upset 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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