Creeping Spiderwort Toxic?

Updated 2026-03-06| 4 min read| 4,560 found this helpful
Creeping Spiderwort
1

All parts of the plant are toxic, and its sap can trigger cell-mediated contact dermatitis in dogs

2

The species is extremely toxic to birds, with calcium oxalate raphides as a core toxic compound

3

Ingestion may lead to serious effects including circulatory collapse, nitrate poisoning, and death in grazing livestock

FAQ

Is Creeping Spiderwort toxic to Humans?

No specific human symptom data recorded; may cause mild skin irritation on contact with plant sap as a precaution (Low)

Is Creeping Spiderwort toxic to Cats?

No confirmed feline toxicity data available; monitor for skin/gastrointestinal irritation if exposure occurs (Low)

Is Creeping Spiderwort toxic to Dogs?

Vesicopustular skin/mucous membrane lesions, itching, redness, swelling, exudation; possible acute circulatory collapse, vomiting, abdominal pain, apathy (Moderate)

Is Creeping Spiderwort toxic to Horses?

No confirmed equine toxicity data available; monitor for adverse reactions if ingested or contacted (Low)

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Toxicity Details

Humans
Low

No specific human symptom data recorded; may cause mild skin irritation on contact with plant sap as a precaution

Cats
Low

No confirmed feline toxicity data available; monitor for skin/gastrointestinal irritation if exposure occurs

Dogs
Moderate

Vesicopustular skin/mucous membrane lesions, itching, redness, swelling, exudation; possible acute circulatory collapse, vomiting, abdominal pain, apathy

Horses
Low

No confirmed equine toxicity data available; monitor for adverse reactions if ingested or contacted

Toxicity Snapshot

Toxic PartsWhole plant; all parts may cause contact dermatitis
Exposure RouteDirect skin/mucous membrane contact, ingestion
Toxic CompoundsDicarboxylic acids (including calcium oxalate crystals/raphides); Polysaccharides (glycoproteins with high carbohydrate content); Nitrogen compounds (including nitrates)

First Aid & Prevention

First 30 Minutes

  • • Wash affected skin immediately with mild soap and cool water if contact with plant sap occurs
  • • Rinse mouth thoroughly with clean water to remove residual plant material if ingested
  • • Monitor for swelling, irritation, vomiting, or lethargy for the first 2 hours post-exposure

Contact Vet Immediately

  • • Appearance of blistering, severe swelling, or exudation on skin or mucous membranes
  • • Development of vomiting, abdominal pain, lethargy, or breathing difficulty post-ingestion
  • • Exposure in birds, as the plant poses severe toxic risk to avian species

Prevention

  • • Avoid growing this plant in areas accessible to pets, livestock, and pet birds
  • • Wear protective gloves when handling the plant to avoid contact with irritant sap
  • • Inspect grazing pastures regularly to remove this and related toxic Commelinaceae species

Treatment & Prognosis

  • • Provide symptomatic supportive care aligned with observed symptoms
  • • For methaemoglobinaemia cases, administer 1% methylene blue solution (9mg/kg slow IV for cattle, repeat after 30 minutes if required)
  • • Administer vitamin C: initial 20mg/kg IV, followed by 30mg/kg orally 3 times per day
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Professional Toxicology

Scientific NameCommelina diffusa Burm.f.
AliasesClimbing dayflower、Scurvy weed
Toxicity Grade
HumansLow
CatsLow
DogsModerate
HorsesLow
Target Organs
SkinMucous membranesCirculatory systemGastrointestinal tract
Mechanism of Action

• Calcium oxalate raphides irritate skin and mucous membranes on direct contact

• Nitrate content causes nitrate poisoning and methaemoglobinaemia in grazing livestock

• Sap components trigger cell-mediated immune response leading to contact dermatitis in dogs

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Birds: Severe toxicity; exposure may lead to rapid serious adverse effects and death
Cattle: May develop fatal nitrate poisoning within 1-2 hours of grazing on the plant or closely related Commelinaceae species
Confusion Risk

The following plants look similar and may be confused:

Other dayflower species Commelina spp.
Share similar creeping growth habit and flower morphology; most Commelina species contain similar toxic calcium oxalate content
Spiderwort species Tradescantia spp.
Same Commelinaceae family, similar leaf and flower structure; many also contain irritant raphides and toxic nitrates
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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.

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